Official observations from Shanghai Pudong International Airport—the market's resolution source—confirm the highest temperature reached 21°C during midday hours on April 25, amid partly cloudy skies, moderate northerly winds, and limited solar heating, driving trader consensus to near-certainty on this outcome. China Meteorological Administration data shows temperatures peaking around 14:00–15:00 local time before steady decline into the evening, consistent with recent model runs from numerical weather prediction systems forecasting mild spring conditions influenced by a stable high-pressure ridge. Historical April highs at Pudong average 19°C, supporting this positioning. A late-day heat burst from unexpected clearing could challenge it, though low solar angles and cooling trends make this improbable; final daily summaries expected shortly from official agencies.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Shanghai on April 25?
21°C 100.0%
14°C or below <1%
15°C <1%
16°C <1%
$213,077 Vol.
$213,077 Vol.
14°C or below
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
No
24°C or higher
No
21°C 100.0%
14°C or below <1%
15°C <1%
16°C <1%
$213,077 Vol.
$213,077 Vol.
14°C or below
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
No
24°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 Shanghai Pudong International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/cn/shanghai/ZSPD.
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 23, 2026, 12:09 AM ET
Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
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 Shanghai Pudong International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/cn/shanghai/ZSPD.
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/shanghai/ZSPDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from Shanghai Pudong International Airport—the market's resolution source—confirm the highest temperature reached 21°C during midday hours on April 25, amid partly cloudy skies, moderate northerly winds, and limited solar heating, driving trader consensus to near-certainty on this outcome. China Meteorological Administration data shows temperatures peaking around 14:00–15:00 local time before steady decline into the evening, consistent with recent model runs from numerical weather prediction systems forecasting mild spring conditions influenced by a stable high-pressure ridge. Historical April highs at Pudong average 19°C, supporting this positioning. A late-day heat burst from unexpected clearing could challenge it, though low solar angles and cooling trends make this improbable; final daily summaries expected shortly from official agencies.
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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