Observed peak temperatures at Shanghai's Xujiahui Observatory reached 19°C midday on April 20, 2026, under persistent overcast skies and northerly winds suppressing solar heating, as confirmed by real-time data from the China Meteorological Administration and aligned international models like those reflected in AccuWeather's 67°F (19°C) high forecast. Earlier morning bulletins from the Hong Kong Observatory projected up to 22°C, but thickening cloud cover—common in spring transitional weather—limited warming, consistent with April climatological averages of 18–20°C highs. Trader consensus at 100% implied probability reflects this skin-in-the-game assessment of observational evidence. Final resolution hinges on the official daily maximum report; a improbable late clearing allowing brief spikes above 19°C remains the only realistic challenge, though evening readings in the mid-teens render it negligible.
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 20?
Highest temperature in Shanghai on April 20?
19°C 100.0%
12°C or below <1%
13°C <1%
14°C <1%
$381,996 Vol.
$381,996 Vol.
Apr 20, 2026
12°C or below
No
13°C
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
No
19°C
Yes
20°C
No
21°C
No
22°C or higher
No
19°C 100.0%
12°C or below <1%
13°C <1%
14°C <1%
$381,996 Vol.
$381,996 Vol.
Apr 20, 2026
12°C or below
$4,572 Vol.
No
13°C
$3,744 Vol.
No
14°C
$6,173 Vol.
No
15°C
$7,602 Vol.
No
16°C
$14,051 Vol.
No
17°C
$19,425 Vol.
No
18°C
$104,991 Vol.
No
19°C
$102,647 Vol.
Yes
20°C
$50,499 Vol.
No
21°C
$37,548 Vol.
No
22°C or higher
$30,743 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 20 Apr '26.
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.Observed peak temperatures at Shanghai's Xujiahui Observatory reached 19°C midday on April 20, 2026, under persistent overcast skies and northerly winds suppressing solar heating, as confirmed by real-time data from the China Meteorological Administration and aligned international models like those reflected in AccuWeather's 67°F (19°C) high forecast. Earlier morning bulletins from the Hong Kong Observatory projected up to 22°C, but thickening cloud cover—common in spring transitional weather—limited warming, consistent with April climatological averages of 18–20°C highs. Trader consensus at 100% implied probability reflects this skin-in-the-game assessment of observational evidence. Final resolution hinges on the official daily maximum report; a improbable late clearing allowing brief spikes above 19°C remains the only realistic challenge, though evening readings in the mid-teens render it negligible.
This market will resolve to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 20 Apr '26.
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.
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 18, 2026, 12:24 AM ET
Volume
$381,996End Date
Apr 20, 2026Market Opened
Apr 18, 2026, 12:24 AM ETResolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 20 Apr '26.
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.Observed peak temperatures at Shanghai's Xujiahui Observatory reached 19°C midday on April 20, 2026, under persistent overcast skies and northerly winds suppressing solar heating, as confirmed by real-time data from the China Meteorological Administration and aligned international models like those reflected in AccuWeather's 67°F (19°C) high forecast. Earlier morning bulletins from the Hong Kong Observatory projected up to 22°C, but thickening cloud cover—common in spring transitional weather—limited warming, consistent with April climatological averages of 18–20°C highs. Trader consensus at 100% implied probability reflects this skin-in-the-game assessment of observational evidence. Final resolution hinges on the official daily maximum report; a improbable late clearing allowing brief spikes above 19°C remains the only realistic challenge, though evening readings in the mid-teens render it negligible.
This market will resolve to the temperature range that contains the highest temperature recorded at the Shanghai Pudong International Airport Station in degrees Celsius on 20 Apr '26.
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.
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.
Volume
$381,996End Date
Apr 20, 2026Market Opened
Apr 18, 2026, 12:24 AM ETResolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Observed peak temperatures at Shanghai's Xujiahui Observatory reached 19°C midday on April 20, 2026, under persistent overcast skies and northerly winds suppressing solar heating, as confirmed by real-time data from the China Meteorological Administration and aligned international models like those reflected in AccuWeather's 67°F (19°C) high forecast. Earlier morning bulletins from the Hong Kong Observatory projected up to 22°C, but thickening cloud cover—common in spring transitional weather—limited warming, consistent with April climatological averages of 18–20°C highs. Trader consensus at 100% implied probability reflects this skin-in-the-game assessment of observational evidence. Final resolution hinges on the official daily maximum report; a improbable late clearing allowing brief spikes above 19°C remains the only realistic challenge, though evening readings in the mid-teens render it negligible.
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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