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    First snow · Wyoming

    When is the first snow in Wyoming?

    Wyoming’s first snow usually lands first in Casper, around October 4, and last in Cheyenne, around October 6.

    Wyoming’s first snow lands in early October, which is basically summer by Wyoming standards.
    Get roasted by your own forecastFree, no account, and you pick how rude I get.

    That makes Wyoming number 2 of the 36 states we track, earliest first.

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    Snow in the next 5 days?

    • No. There’s no snow in the Casper forecast for the next 5 days.
    • No. There’s no snow in the Cheyenne forecast for the next 5 days.

    Live 5-day forecast and current temperature from OpenWeatherMap, refreshed about every half hour. Winter warnings from the National Weather Service.

    First snow, city by city

    CityUsually around8 winters in 10Snow a winter
    CasperOctober 4September 15 to November 2about 73 in
    CheyenneOctober 6September 14 to October 26about 64 in

    Usually around is the middle date across 30 winters. In 8 winters out of 10, the first snow lands inside the range.

    States on the same snow schedule

    • Montana: from around October 6 in Great Falls
    • Alaska: from around September 30 in Fairbanks
    • Colorado: from around October 21 in Denver

    Every state’s first snow, earliest first

    Source: NOAA daily snowfall records for each city’s official station, winters 1991 to 2020, via the Applied Climate Information System. First snow here means the first day with at least a tenth of an inch.

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