**Active weather patterns centered on the Midwest and Ohio Valley are the main driver for precipitation probabilities on September 20, 2026.** The National Weather Service Weather Prediction Center highlights a moderate risk of excessive rainfall through training convection in eastern Iowa, northern Illinois, and northern Indiana, supported by strong model signals from the HRRR and RRFS for localized heavy totals amid moist southerly flow and an effective front. Farther south and east, scattered thunderstorms are forecast in parts of Florida and the Southeast with 40-70% chances, while many central and western locations face lower probabilities under drier high-pressure influence. Resolution depends on official NWS Daily Climate Reports (CLI) confirming at least 0.01 inches at specific airport stations, with the latest model guidance and any overnight updates from NOAA likely to refine city-specific odds before the period ends.
Polymarketデータを参照したAI生成の実験的な要約。これは取引アドバイスではなく、このマーケットの解決方法には一切関係ありません。 · 更新日9月20日はどこで雨が降りますか？
9月20日はどこで雨が降りますか？
新規
2026/09/21
ニューヨーク（NY）
88%
カリフォルニア州ロサンゼルス
24%
イリノイ州シカゴ
76%
テキサス州ヒューストン
50%
テキサス州ダラス
50%
アリゾナ州フェニックス
24%
ペンシルベニア州フィラデルフィア
54%
デンバー（コロラド州）
38%
ワシントンD.C.
50%
ジョージア州アトランタ
50%
フロリダ州マイアミ
50%
ワシントン州シアトル
24%
マサチューセッツ州ボストン
81%
ルイジアナ州ニューオーリンズ
50%
カリフォルニア州サンフランシスコ
24%
$0.00 Vol.
ニューヨーク（NY）
$0 Vol.
88%
カリフォルニア州ロサンゼルス
$0 Vol.
24%
イリノイ州シカゴ
$0 Vol.
76%
テキサス州ヒューストン
$0 Vol.
50%
テキサス州ダラス
$0 Vol.
50%
アリゾナ州フェニックス
$0 Vol.
24%
ペンシルベニア州フィラデルフィア
$0 Vol.
54%
デンバー（コロラド州）
$0 Vol.
38%
ワシントンD.C.
$0 Vol.
50%
ジョージア州アトランタ
$0 Vol.
50%
フロリダ州マイアミ
$0 Vol.
50%
ワシントン州シアトル
$0 Vol.
24%
マサチューセッツ州ボストン
$0 Vol.
81%
ルイジアナ州ニューオーリンズ
$0 Vol.
50%
カリフォルニア州サンフランシスコ
$0 Vol.
24%
This market will resolve to "Yes" if New York, NY records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KNYC: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KNYC, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=NYC.This market will resolve to "Yes" if Los Angeles, CA records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KLAX: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KLAX, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=LAX.This market will resolve to "Yes" if Chicago, IL records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KMDW: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KMDW, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=MDW.This market will resolve to "Yes" if Houston, TX records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KIAH: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KIAH, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=IAH.This market will resolve to "Yes" if Dallas, TX records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KDFW: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KDFW, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=DFW.This market will resolve to "Yes" if Phoenix, AZ records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KPHX: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KPHX, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=PHX.This market will resolve to "Yes" if Philadelphia, PA records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KPHL: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KPHL, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=PHL.This market will resolve to "Yes" if Denver, CO records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KDEN: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KDEN, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=DEN.This market will resolve to "Yes" if Washington, DC records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KDCA: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KDCA, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=DCA.This market will resolve to "Yes" if Atlanta, GA records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KATL: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KATL, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=ATL.This market will resolve to "Yes" if Miami, FL records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KMIA: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KMIA, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=MIA.This market will resolve to "Yes" if Seattle, WA records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KSEA: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KSEA, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=SEA.This market will resolve to "Yes" if Boston, MA records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KBOS: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KBOS, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=BOS.This market will resolve to "Yes" if New Orleans, LA records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KMSY: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KMSY, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=MSY.This market will resolve to "Yes" if San Francisco, CA records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KSFO: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KSFO, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=SFO.**Active weather patterns centered on the Midwest and Ohio Valley are the main driver for precipitation probabilities on September 20, 2026.** The National Weather Service Weather Prediction Center highlights a moderate risk of excessive rainfall through training convection in eastern Iowa, northern Illinois, and northern Indiana, supported by strong model signals from the HRRR and RRFS for localized heavy totals amid moist southerly flow and an effective front.
Farther south and east, scattered thunderstorms are forecast in parts of Florida and the Southeast with 40-70% chances, while many central and western locations face lower probabilities under drier high-pressure influence. Resolution depends on official NWS Daily Climate Reports (CLI) confirming at least 0.01 inches at specific airport stations, with the latest model guidance and any overnight updates from NOAA likely to refine city-specific odds before the period ends.
This market will resolve to "Yes" if New York, NY records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KNYC: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KNYC, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=NYC.
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KNYC: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KNYC, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=NYC.
マーケット開始日： Sep 19, 2026, 7:09 AM ET
音量
$0終了日
2026/09/21マーケット開始日
Sep 19, 2026, 7:09 AM ETThis market will resolve to "Yes" if New York, NY records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KNYC: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KNYC, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=NYC.This market will resolve to "Yes" if Los Angeles, CA records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KLAX: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KLAX, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=LAX.This market will resolve to "Yes" if Chicago, IL records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KMDW: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KMDW, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=MDW.This market will resolve to "Yes" if Houston, TX records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KIAH: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KIAH, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=IAH.This market will resolve to "Yes" if Dallas, TX records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KDFW: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KDFW, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=DFW.This market will resolve to "Yes" if Phoenix, AZ records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KPHX: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KPHX, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=PHX.This market will resolve to "Yes" if Philadelphia, PA records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KPHL: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KPHL, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=PHL.This market will resolve to "Yes" if Denver, CO records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KDEN: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KDEN, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=DEN.This market will resolve to "Yes" if Washington, DC records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KDCA: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KDCA, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=DCA.This market will resolve to "Yes" if Atlanta, GA records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KATL: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KATL, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=ATL.This market will resolve to "Yes" if Miami, FL records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KMIA: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KMIA, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=MIA.This market will resolve to "Yes" if Seattle, WA records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KSEA: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KSEA, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=SEA.This market will resolve to "Yes" if Boston, MA records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KBOS: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KBOS, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=BOS.This market will resolve to "Yes" if New Orleans, LA records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KMSY: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KMSY, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=MSY.This market will resolve to "Yes" if San Francisco, CA records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KSFO: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KSFO, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=SFO.**Active weather patterns centered on the Midwest and Ohio Valley are the main driver for precipitation probabilities on September 20, 2026.** The National Weather Service Weather Prediction Center highlights a moderate risk of excessive rainfall through training convection in eastern Iowa, northern Illinois, and northern Indiana, supported by strong model signals from the HRRR and RRFS for localized heavy totals amid moist southerly flow and an effective front.
Farther south and east, scattered thunderstorms are forecast in parts of Florida and the Southeast with 40-70% chances, while many central and western locations face lower probabilities under drier high-pressure influence. Resolution depends on official NWS Daily Climate Reports (CLI) confirming at least 0.01 inches at specific airport stations, with the latest model guidance and any overnight updates from NOAA likely to refine city-specific odds before the period ends.
This market will resolve to "Yes" if New York, NY records measurable precipitation on September 20, 2026. Otherwise, this market will resolve to "No".
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KNYC: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KNYC, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=NYC.
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KNYC: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KNYC, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=NYC.
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$0終了日
2026/09/21マーケット開始日
Sep 19, 2026, 7:09 AM ET**Active weather patterns centered on the Midwest and Ohio Valley are the main driver for precipitation probabilities on September 20, 2026.** The National Weather Service Weather Prediction Center highlights a moderate risk of excessive rainfall through training convection in eastern Iowa, northern Illinois, and northern Indiana, supported by strong model signals from the HRRR and RRFS for localized heavy totals amid moist southerly flow and an effective front. Farther south and east, scattered thunderstorms are forecast in parts of Florida and the Southeast with 40-70% chances, while many central and western locations face lower probabilities under drier high-pressure influence. Resolution depends on official NWS Daily Climate Reports (CLI) confirming at least 0.01 inches at specific airport stations, with the latest model guidance and any overnight updates from NOAA likely to refine city-specific odds before the period ends.
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