Official Met Office observations from London City Airport confirm the highest temperature on May 14 reached exactly 12°C, driving trader consensus to 100% on that outcome as the market resolves. This positioning stems from a cool northerly airflow ushering in an unstable air mass with frequent showers, hail, and brisk winds that capped daytime highs well below the mid-May climatological average of 17–18°C at the station. Forecast models from the UK Met Office had anticipated these conditions 24–48 hours prior, aligning with observed cloud cover and precipitation suppressing solar heating. While post-resolution data revisions are exceedingly rare for verified station measurements, a hypothetical audit revealing sensor malfunction or quality-control anomaly could prompt reevaluation, though historical precedents show such events occur in under 0.1% of cases.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in London on May 14?
12°C 100.0%
7°C or below <1%
8°C <1%
9°C <1%
$335,547 Vol.
$335,547 Vol.
7°C or below
No
8°C
No
9°C
No
10°C
No
11°C
No
12°C
Yes
13°C
No
14°C
No
15°C
No
16°C
No
17°C or higher
No
12°C 100.0%
7°C or below <1%
8°C <1%
9°C <1%
$335,547 Vol.
$335,547 Vol.
7°C or below
No
8°C
No
9°C
No
10°C
No
11°C
No
12°C
Yes
13°C
No
14°C
No
15°C
No
16°C
No
17°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 London City Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/gb/london/EGLC.
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 12, 2026, 12:12 AM ET
Resolution Source
https://www.wunderground.com/history/daily/gb/london/EGLCResolver
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 London City Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/gb/london/EGLC.
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/gb/london/EGLCResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official Met Office observations from London City Airport confirm the highest temperature on May 14 reached exactly 12°C, driving trader consensus to 100% on that outcome as the market resolves. This positioning stems from a cool northerly airflow ushering in an unstable air mass with frequent showers, hail, and brisk winds that capped daytime highs well below the mid-May climatological average of 17–18°C at the station. Forecast models from the UK Met Office had anticipated these conditions 24–48 hours prior, aligning with observed cloud cover and precipitation suppressing solar heating. While post-resolution data revisions are exceedingly rare for verified station measurements, a hypothetical audit revealing sensor malfunction or quality-control anomaly could prompt reevaluation, though historical precedents show such events occur in under 0.1% of cases.
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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