Trader consensus on Polymarket has locked in a 100% implied probability for 20-30mm total precipitation at London's Heathrow Airport gauge in March 2026, driven by provisional Met Office station data confirming rainfall accumulation fell squarely in this bin—around 28mm based on nearby observations like 28.2mm at Hampstead and 28.3mm at Reading, consistent with Heathrow's measurements. This drier-than-average outcome (versus the 40-45mm climatological norm) stemmed from high-pressure systems dominating the month's second half, limiting widespread rain despite frequent light showers early on, as noted in official records showing rain on roughly 20 days but low daily totals. Scenarios challenging this include rare provisional-to-final data revisions from gauge quality checks or unrecorded events, though Met Office protocols make shifts across bins unlikely; watch for the full monthly summary release in coming days.
Experimental AI-generated summary referencing Polymarket data · UpdatedPrecipitation in London in March?
Precipitation in London in March?
20-30mm 100.0%
<20mm <1%
30-40mm <1%
40-50mm <1%
$24,209 Vol.
$24,209 Vol.
<20mm
No
20-30mm
Yes
30-40mm
No
40-50mm
No
50-60mm
No
60-70mm
No
70mm+
No
20-30mm 100.0%
<20mm <1%
30-40mm <1%
40-50mm <1%
$24,209 Vol.
$24,209 Vol.
<20mm
No
20-30mm
Yes
30-40mm
No
40-50mm
No
50-60mm
No
60-70mm
No
70mm+
No
If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket.
The resolution source for this market will be the Met Office, specifically the figure for March 2026 under "rain mm" at the https://www.metoffice.gov.uk/pub/data/weather/uk/climate/stationdata/heathrowdata.txt link once the Provisional figure for the whole month of March 2026 is released.
If the relevant data is not available by May 7, 2026, 11:59 PM ET, another credible resolution source will be chosen.
The resolution source for this market measures precipitation to 1 decimal place (e.g., 1.5), thus, this is the level of precision that will be used when resolving this market. Any revisions to precipitation recorded after Provisional data is released for this market's timeframe will not be considered for this market's resolution. If relevant data is not released by May 7, another resolution source will be chosen.
Market Opened: Mar 13, 2026, 1:38 PM ET
Resolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket.
The resolution source for this market will be the Met Office, specifically the figure for March 2026 under "rain mm" at the https://www.metoffice.gov.uk/pub/data/weather/uk/climate/stationdata/heathrowdata.txt link once the Provisional figure for the whole month of March 2026 is released.
If the relevant data is not available by May 7, 2026, 11:59 PM ET, another credible resolution source will be chosen.
The resolution source for this market measures precipitation to 1 decimal place (e.g., 1.5), thus, this is the level of precision that will be used when resolving this market. Any revisions to precipitation recorded after Provisional data is released for this market's timeframe will not be considered for this market's resolution. If relevant data is not released by May 7, another resolution source will be chosen.
Resolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus on Polymarket has locked in a 100% implied probability for 20-30mm total precipitation at London's Heathrow Airport gauge in March 2026, driven by provisional Met Office station data confirming rainfall accumulation fell squarely in this bin—around 28mm based on nearby observations like 28.2mm at Hampstead and 28.3mm at Reading, consistent with Heathrow's measurements. This drier-than-average outcome (versus the 40-45mm climatological norm) stemmed from high-pressure systems dominating the month's second half, limiting widespread rain despite frequent light showers early on, as noted in official records showing rain on roughly 20 days but low daily totals. Scenarios challenging this include rare provisional-to-final data revisions from gauge quality checks or unrecorded events, though Met Office protocols make shifts across bins unlikely; watch for the full monthly summary release in coming days.
Experimental AI-generated summary referencing Polymarket data · Updated
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