Official observations from Chengdu's meteorological stations, including Chengdu Shuangliu International Airport (ZUUU), confirm a maximum temperature of 21°C (70°F) on April 21, under partly cloudy skies with early morning light rain showers and no measurable precipitation, driving trader consensus to 100% implied probability for this outcome. Persistent cloud cover reduced insolation, limiting daytime heating despite typical April highs averaging 20–23°C in the region per historical China Meteorological Administration (CMA) data. Model forecasts had anticipated around 20°C amid overcast conditions, but actual peaks aligned closely. Realistic challenges include rare post-processing revisions from data validation, though cross-station agreement is strong; final CMA daily summary expected soon to lock resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Chengdu on April 21?
21°C 100.0%
13°C or below <1%
14°C <1%
15°C <1%
$120,497 Vol.
$120,497 Vol.
13°C or below
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
Yes
22°C
No
23°C or higher
No
21°C 100.0%
13°C or below <1%
14°C <1%
15°C <1%
$120,497 Vol.
$120,497 Vol.
13°C or below
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
Yes
22°C
No
23°C or higher
No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Chengdu Shuangliu International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/cn/chengdu/ZUUU.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Apr 19, 2026, 12:07 AM ET
Resolution Source
https://www.wunderground.com/history/daily/cn/chengdu/ZUUUResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Chengdu Shuangliu International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/cn/chengdu/ZUUU.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/cn/chengdu/ZUUUResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from Chengdu's meteorological stations, including Chengdu Shuangliu International Airport (ZUUU), confirm a maximum temperature of 21°C (70°F) on April 21, under partly cloudy skies with early morning light rain showers and no measurable precipitation, driving trader consensus to 100% implied probability for this outcome. Persistent cloud cover reduced insolation, limiting daytime heating despite typical April highs averaging 20–23°C in the region per historical China Meteorological Administration (CMA) data. Model forecasts had anticipated around 20°C amid overcast conditions, but actual peaks aligned closely. Realistic challenges include rare post-processing revisions from data validation, though cross-station agreement is strong; final CMA daily summary expected soon to lock resolution.
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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