Trader consensus on Polymarket pins the highest temperature in Shanghai on March 19 at exactly 12°C, propelled by converging forecasts from authoritative models like ECMWF and GFS, projecting daytime highs of 11-13°C under cool northerly winds, overcast skies, and a stable upper-level trough. Historical March climatology supports this, with Shanghai's average highs around 12°C and recent observations from Pudong stations confirming chilly conditions. Ensemble spreads remain tight, implying high confidence. Challenges could arise from an unexpected warm front or model underestimation of insolation—common spring variabilities that occasionally boost temps by 1-2°C—but current synoptic patterns make 13°C or higher unlikely.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on March 19?
Highest temperature in Shanghai on March 19?
12°C 100.0%
4°C or below <1%
5°C <1%
6°C <1%
$86,821 Vol.
$86,821 Vol.
4°C or below
No
5°C
No
6°C
No
7°C
No
8°C
No
9°C
No
10°C
No
11°C
No
12°C
Yes
13°C
No
14°C or higher
No
12°C 100.0%
4°C or below <1%
5°C <1%
6°C <1%
$86,821 Vol.
$86,821 Vol.
4°C or below
No
5°C
No
6°C
No
7°C
No
8°C
No
9°C
No
10°C
No
11°C
No
12°C
Yes
13°C
No
14°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 15, 2026, 6:02 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...Trader consensus on Polymarket pins the highest temperature in Shanghai on March 19 at exactly 12°C, propelled by converging forecasts from authoritative models like ECMWF and GFS, projecting daytime highs of 11-13°C under cool northerly winds, overcast skies, and a stable upper-level trough. Historical March climatology supports this, with Shanghai's average highs around 12°C and recent observations from Pudong stations confirming chilly conditions. Ensemble spreads remain tight, implying high confidence. Challenges could arise from an unexpected warm front or model underestimation of insolation—common spring variabilities that occasionally boost temps by 1-2°C—but current synoptic patterns make 13°C or higher unlikely.
Experimental AI-generated summary referencing Polymarket data · Updated
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