Trader consensus assigns a 95% implied probability to a highest temperature of 33°C in Chengdu on May 21, reflecting strong agreement among ensemble forecast models that daytime maxima will peak under stable subtropical high-pressure conditions without significant warm-air advection. Recent surface observations and guidance from agencies such as the China Meteorological Administration show typical late-spring patterns, with temperatures aligning closely to the 30–33°C historical average for mid-May and limited convective activity expected to moderate heat buildup. This positioning draws additional support from consistent model runs projecting minimal deviation in wind and humidity fields. Scenarios that could realistically shift the outcome to 34°C or higher include faster-than-anticipated clearing of morning cloud cover or localized urban heat-island intensification, though current observational trends indicate these remain low-probability adjustments.
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 May 21?
$35,898 Vol.
$35,898 Vol.
33°C
99%
34°C or higher
1%
$35,898 Vol.
$35,898 Vol.
33°C
99%
34°C or higher
1%
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: May 19, 2026, 12:07 AM ET
Resolution Source
https://www.wunderground.com/history/daily/cn/chengdu/ZUUUResolver
0x69c47De9D...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...Trader consensus assigns a 95% implied probability to a highest temperature of 33°C in Chengdu on May 21, reflecting strong agreement among ensemble forecast models that daytime maxima will peak under stable subtropical high-pressure conditions without significant warm-air advection. Recent surface observations and guidance from agencies such as the China Meteorological Administration show typical late-spring patterns, with temperatures aligning closely to the 30–33°C historical average for mid-May and limited convective activity expected to moderate heat buildup. This positioning draws additional support from consistent model runs projecting minimal deviation in wind and humidity fields. Scenarios that could realistically shift the outcome to 34°C or higher include faster-than-anticipated clearing of morning cloud cover or localized urban heat-island intensification, though current observational trends indicate these remain low-probability adjustments.
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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