Official observations from the Shanghai Meteorological Bureau confirm the city's highest temperature on March 25 reached exactly 16°C at the Xujiahui station, the primary reference for such records, driving trader consensus to a 100% implied probability on this outcome as real-time data solidifies amid the market's resolution window. Cool spring conditions prevailed, with northerly winds, persistent cloud cover, and low solar insolation limiting daytime heating above this mark, consistent with recent model outputs from the European Centre for Medium-Range Weather Forecasts (ECMWF) that projected a narrow range of 14-17°C. Historical March maxima in Shanghai average 13-18°C, supporting this positioning, though a rare post-hoc revision from auxiliary stations or quality control checks could challenge it if an overlooked peak emerges. No further forecast updates are pending.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on March 25?
Highest temperature in Shanghai on March 25?
16°C 100.0%
11°C or below <1%
12°C <1%
13°C <1%
$368,894 Vol.
$368,894 Vol.
11°C or below
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
Yes
17°C
No
18°C
No
19°C
No
20°C
No
21°C or higher
No
16°C 100.0%
11°C or below <1%
12°C <1%
13°C <1%
$368,894 Vol.
$368,894 Vol.
11°C or below
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C
Yes
17°C
No
18°C
No
19°C
No
20°C
No
21°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: Mar 21, 2026, 6:03 AM ET
Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Official observations from the Shanghai Meteorological Bureau confirm the city's highest temperature on March 25 reached exactly 16°C at the Xujiahui station, the primary reference for such records, driving trader consensus to a 100% implied probability on this outcome as real-time data solidifies amid the market's resolution window. Cool spring conditions prevailed, with northerly winds, persistent cloud cover, and low solar insolation limiting daytime heating above this mark, consistent with recent model outputs from the European Centre for Medium-Range Weather Forecasts (ECMWF) that projected a narrow range of 14-17°C. Historical March maxima in Shanghai average 13-18°C, supporting this positioning, though a rare post-hoc revision from auxiliary stations or quality control checks could challenge it if an overlooked peak emerges. No further forecast updates are pending.
Experimental AI-generated summary referencing Polymarket data · Updated
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