Persistent cloud cover, light rain, and northerly winds across Zhengzhou have held minimum temperatures near 21°C on September 20, according to multiple forecast models and surface observations. Overcast conditions limit radiative cooling overnight, while high humidity near 80-90% and light winds around 4-7 km/h further stabilize the boundary layer. This aligns with current readings in the low 20s°C and consensus lows of 20-21°C from regional guidance. Trader positioning at 100% implied probability for 21°C reflects these stable atmospheric conditions and proximity to daily resolution. A rapid clearing of skies or shift to drier air could allow greater nocturnal cooling and push the minimum to 20°C, though such changes appear unlikely in the final hours.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Zhengzhou on September 20?
Lowest temperature in Zhengzhou on September 20?
21°C 99.5%
19°C 94%
15°C or below 1.0%
16°C 1.0%
$618 Vol.
$618 Vol.
Sep 20, 2026
15°C or below
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
Yes
22°C
No
23°C
No
24°C
No
25°C or higher
No
21°C 99.5%
19°C 94%
15°C or below 1.0%
16°C 1.0%
$618 Vol.
$618 Vol.
Sep 20, 2026
15°C or below
$10 Vol.
No
16°C
$10 Vol.
No
17°C
$68 Vol.
No
18°C
$46 Vol.
No
19°C
$11 Vol.
No
20°C
$155 Vol.
No
21°C
$133 Vol.
Yes
22°C
$81 Vol.
No
23°C
$20 Vol.
No
24°C
$37 Vol.
No
25°C or higher
$47 Vol.
No
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Zhengzhou Xinzheng International Airport Station in degrees Celsius on 20 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=zhcc
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.Persistent cloud cover, light rain, and northerly winds across Zhengzhou have held minimum temperatures near 21°C on September 20, according to multiple forecast models and surface observations. Overcast conditions limit radiative cooling overnight, while high humidity near 80-90% and light winds around 4-7 km/h further stabilize the boundary layer. This aligns with current readings in the low 20s°C and consensus lows of 20-21°C from regional guidance. Trader positioning at 100% implied probability for 21°C reflects these stable atmospheric conditions and proximity to daily resolution. A rapid clearing of skies or shift to drier air could allow greater nocturnal cooling and push the minimum to 20°C, though such changes appear unlikely in the final hours.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Zhengzhou Xinzheng International Airport Station in degrees Celsius on 20 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=zhcc
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=zhcc
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Sep 19, 2026, 12:28 AM ET
Volume
$618End Date
Sep 20, 2026Market Opened
Sep 19, 2026, 12:28 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zhccResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Zhengzhou Xinzheng International Airport Station in degrees Celsius on 20 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=zhcc
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.Persistent cloud cover, light rain, and northerly winds across Zhengzhou have held minimum temperatures near 21°C on September 20, according to multiple forecast models and surface observations. Overcast conditions limit radiative cooling overnight, while high humidity near 80-90% and light winds around 4-7 km/h further stabilize the boundary layer. This aligns with current readings in the low 20s°C and consensus lows of 20-21°C from regional guidance. Trader positioning at 100% implied probability for 21°C reflects these stable atmospheric conditions and proximity to daily resolution. A rapid clearing of skies or shift to drier air could allow greater nocturnal cooling and push the minimum to 20°C, though such changes appear unlikely in the final hours.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Zhengzhou Xinzheng International Airport Station in degrees Celsius on 20 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=zhcc
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
The resolution source for this market will be information from NOAA, specifically the lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=zhcc
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Volume
$618End Date
Sep 20, 2026Market Opened
Sep 19, 2026, 12:28 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=zhccResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Persistent cloud cover, light rain, and northerly winds across Zhengzhou have held minimum temperatures near 21°C on September 20, according to multiple forecast models and surface observations. Overcast conditions limit radiative cooling overnight, while high humidity near 80-90% and light winds around 4-7 km/h further stabilize the boundary layer. This aligns with current readings in the low 20s°C and consensus lows of 20-21°C from regional guidance. Trader positioning at 100% implied probability for 21°C reflects these stable atmospheric conditions and proximity to daily resolution. A rapid clearing of skies or shift to drier air could allow greater nocturnal cooling and push the minimum to 20°C, though such changes appear unlikely in the final hours.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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