Cold air advection from a trough and frontal system is driving a sharp 12–14°C drop in Zhengzhou on September 8, with official local forecasts projecting overnight lows near 15–16°C amid light rain, 4–7 level northerly winds, and overcast skies. Multiple numerical models and station guidance converge on minimums in the 15–16°C range, though exact values hinge on the timing and intensity of precipitation, which can enhance radiative cooling or mix warmer air. This places the 15°C-or-below outcome near even odds with adjacent bins, reflecting genuine uncertainty in mesoscale details rather than model disagreement. Historical September minima for the city average near 18–20°C, underscoring how atypical the current synoptic setup remains.
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 8?
15°C or below 50%
17°C 48%
16°C 45%
18°C <1%
15°C or below
50%
16°C
45%
17°C
48%
18°C
<1%
19°C
<1%
20°C
<1%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
<1%
25°C or higher
<1%
15°C or below 50%
17°C 48%
16°C 45%
18°C <1%
15°C or below
50%
16°C
45%
17°C
48%
18°C
<1%
19°C
<1%
20°C
<1%
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 7, 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...Cold air advection from a trough and frontal system is driving a sharp 12–14°C drop in Zhengzhou on September 8, with official local forecasts projecting overnight lows near 15–16°C amid light rain, 4–7 level northerly winds, and overcast skies. Multiple numerical models and station guidance converge on minimums in the 15–16°C range, though exact values hinge on the timing and intensity of precipitation, which can enhance radiative cooling or mix warmer air. This places the 15°C-or-below outcome near even odds with adjacent bins, reflecting genuine uncertainty in mesoscale details rather than model disagreement. Historical September minima for the city average near 18–20°C, underscoring how atypical the current synoptic setup remains.
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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