Clear skies and light northeast to north winds over Zhengzhou are promoting strong nocturnal radiative cooling, with current model consensus pointing to an overnight minimum near 18–20 °C on September 2. Recent northerly flow has advected drier, cooler air into Henan, lowering daytime highs from the prior week’s 34 °C peak and widening the diurnal range. Minor differences among 18 °C, 19 °C, and 20 °C outcomes hinge on exact dew-point depressions, boundary-layer wind speeds, and any thin high-cloud variations that could reduce long-wave heat loss. Official forecasts from regional meteorological services cluster in this narrow band, leaving traders to weigh small uncertainties in local microclimate and model resolution for the final recorded minimum.
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 2?
18°C 47%
19°C 47%
16°C 41%
17°C 41%
15°C or below
7%
16°C
41%
17°C
41%
18°C
47%
19°C
47%
20°C
51%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
<1%
25°C or higher
<1%
18°C 47%
19°C 47%
16°C 41%
17°C 41%
15°C or below
7%
16°C
41%
17°C
41%
18°C
47%
19°C
47%
20°C
51%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
<1%
25°C or higher
<1%
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 1, 2026, 12:28 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=zhccResolver
0x69c47De9D...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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=zhccResolver
0x69c47De9D...Clear skies and light northeast to north winds over Zhengzhou are promoting strong nocturnal radiative cooling, with current model consensus pointing to an overnight minimum near 18–20 °C on September 2. Recent northerly flow has advected drier, cooler air into Henan, lowering daytime highs from the prior week’s 34 °C peak and widening the diurnal range. Minor differences among 18 °C, 19 °C, and 20 °C outcomes hinge on exact dew-point depressions, boundary-layer wind speeds, and any thin high-cloud variations that could reduce long-wave heat loss. Official forecasts from regional meteorological services cluster in this narrow band, leaving traders to weigh small uncertainties in local microclimate and model resolution for the final recorded minimum.
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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