Mt. Washington’s summit experiences peak September wind gusts driven by strengthening pressure gradients during the seasonal transition and occasional tropical cyclone remnants, which historically produce the month’s extremes such as the 174 mph record from Hurricane David in 1979. Observatory data show a normal September average wind speed near 28 mph and typical peak gusts around 90–95 mph, with measurements taken via heated anemometers to account for icing. Early September 2026 begins with a low-pressure system forecast to deliver southeast winds of 30–40 mph and gusts to 50+ mph at lower elevations, translating to significantly higher summit values amid the mountain’s orographic amplification. Daily observatory reports and updated National Weather Service model runs will provide the primary real-time data influencing market-implied odds through the month.
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?
Highest Mt. Washington wind speed in September?
NEW
Sep 30, 2026
≥80 mph
95%
≥85 mph
90%
≥90 mph
50%
≥95 mph
50%
≥100 mph
50%
≥105 mph
50%
≥110 mph
50%
$0.00 Vol.
≥80 mph
$0 Vol.
95%
≥85 mph
$0 Vol.
90%
≥90 mph
$0 Vol.
50%
≥95 mph
$0 Vol.
50%
≥100 mph
$0 Vol.
50%
≥105 mph
$0 Vol.
50%
≥110 mph
$0 Vol.
50%
This market will resolve based on the highest wind speed, in miles per hour, reported on the summit of Mt. Washington in New Hampshire in September, 2026.
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.Mt. Washington’s summit experiences peak September wind gusts driven by strengthening pressure gradients during the seasonal transition and occasional tropical cyclone remnants, which historically produce the month’s extremes such as the 174 mph record from Hurricane David in 1979. Observatory data show a normal September average wind speed near 28 mph and typical peak gusts around 90–95 mph, with measurements taken via heated anemometers to account for icing. Early September 2026 begins with a low-pressure system forecast to deliver southeast winds of 30–40 mph and gusts to 50+ mph at lower elevations, translating to significantly higher summit values amid the mountain’s orographic amplification. Daily observatory reports and updated National Weather Service model runs will provide the primary real-time data influencing market-implied odds through the month.
This market will resolve based on the highest wind speed, in miles per hour, reported on the summit of Mt. Washington in New Hampshire in September, 2026.
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.
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
Volume
$0End Date
Oct 1, 2026Market Opened
Aug 31, 2026, 1:06 PM ETResolver
0x65070BE91...This market will resolve based on the highest wind speed, in miles per hour, reported on the summit of Mt. Washington in New Hampshire in September, 2026.
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.Mt. Washington’s summit experiences peak September wind gusts driven by strengthening pressure gradients during the seasonal transition and occasional tropical cyclone remnants, which historically produce the month’s extremes such as the 174 mph record from Hurricane David in 1979. Observatory data show a normal September average wind speed near 28 mph and typical peak gusts around 90–95 mph, with measurements taken via heated anemometers to account for icing. Early September 2026 begins with a low-pressure system forecast to deliver southeast winds of 30–40 mph and gusts to 50+ mph at lower elevations, translating to significantly higher summit values amid the mountain’s orographic amplification. Daily observatory reports and updated National Weather Service model runs will provide the primary real-time data influencing market-implied odds through the month.
This market will resolve based on the highest wind speed, in miles per hour, reported on the summit of Mt. Washington in New Hampshire in September, 2026.
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.
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.
Volume
$0End Date
Oct 1, 2026Market Opened
Aug 31, 2026, 1:06 PM ETResolver
0x65070BE91...Mt. Washington’s summit experiences peak September wind gusts driven by strengthening pressure gradients during the seasonal transition and occasional tropical cyclone remnants, which historically produce the month’s extremes such as the 174 mph record from Hurricane David in 1979. Observatory data show a normal September average wind speed near 28 mph and typical peak gusts around 90–95 mph, with measurements taken via heated anemometers to account for icing. Early September 2026 begins with a low-pressure system forecast to deliver southeast winds of 30–40 mph and gusts to 50+ mph at lower elevations, translating to significantly higher summit values amid the mountain’s orographic amplification. Daily observatory reports and updated National Weather Service model runs will provide the primary real-time data influencing market-implied odds through the month.
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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