Recent September wind speeds at Mount Washington have peaked at 103.9 mph on the 10th amid typical early-fall conditions, well below the 174 mph historical monthly record set in 1979 by remnants of Hurricane David. Mount Washington Observatory data show sustained northwest flows and gusts mostly in the 40–80 mph range through mid-month, consistent with climatological patterns where the strongest events often stem from tropical cyclone remnants or intensifying extratropical lows rather than routine frontal passages. National Weather Service and observatory forecasts through late September indicate potential gusts to 60–85 mph with any approaching systems, but no immediate high-wind setup. Daily summit observations and model updates from NOAA will determine whether stronger steering patterns or late-month storms push values closer to or beyond typical September extremes.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest Mt. Washington wind speed in September?
≥80 mph
99%
≥85 mph
98%
≥90 mph
99%
≥95 mph
100%
≥100 mph
99%
≥105 mph
46%
≥110 mph
43%
$4,967 Vol.
≥80 mph
99%
≥85 mph
98%
≥90 mph
99%
≥95 mph
100%
≥100 mph
99%
≥105 mph
46%
≥110 mph
43%
The resolution source will be data published by the Mt. Washington Weather Observatory. F6 reports containing daily wind speed recordings can be found here: https://mountwashington.org/weather/mount-washington-weather-archives/monthly-f6/.
The resolution source for this market measures wind speeds to whole mile per hour (eg, 67mph). Thus, this is the level of precision that will be used when resolving the market.
Revisions to the wind speed recorded within this market's timeframe will be considered until the first datapoint for the following month has been published, after which any alterations will not be considered.
Market Opened: Aug 31, 2026, 1:06 PM ET
Resolver
0x65070BE91...The resolution source will be data published by the Mt. Washington Weather Observatory. F6 reports containing daily wind speed recordings can be found here: https://mountwashington.org/weather/mount-washington-weather-archives/monthly-f6/.
The resolution source for this market measures wind speeds to whole mile per hour (eg, 67mph). Thus, this is the level of precision that will be used when resolving the market.
Revisions to the wind speed recorded within this market's timeframe will be considered until the first datapoint for the following month has been published, after which any alterations will not be considered.
Resolver
0x65070BE91...Recent September wind speeds at Mount Washington have peaked at 103.9 mph on the 10th amid typical early-fall conditions, well below the 174 mph historical monthly record set in 1979 by remnants of Hurricane David. Mount Washington Observatory data show sustained northwest flows and gusts mostly in the 40–80 mph range through mid-month, consistent with climatological patterns where the strongest events often stem from tropical cyclone remnants or intensifying extratropical lows rather than routine frontal passages. National Weather Service and observatory forecasts through late September indicate potential gusts to 60–85 mph with any approaching systems, but no immediate high-wind setup. Daily summit observations and model updates from NOAA will determine whether stronger steering patterns or late-month storms push values closer to or beyond typical September extremes.
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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