Weather · Sullivan
Sullivan forecast & conditions
Current conditions, the 7-day outlook and hour-by-hour details for Sullivan, straight from the National Weather Service. Watches and warnings show up first.
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Climate · a normal year
What a year in Sullivan feels like
Sullivan has chilly, snowy winters and pleasant summers. A typical July afternoon reaches 83°, a January night drops to 18°, and about 87 inches of snow falls in a normal winter.
34° / 20°Winter
57° / 35°Spring
81° / 58°Summer
60° / 41°Fall
How much snow does Sullivan get?About 87 inches a winter.Rain & snow →When is the first frost?Around Oct 19, with the last in spring around Apr 30.Frost dates →Is it warmer than it used to be?+1.6° vs. the 20th century.Then & now →
See Sullivan’s full climate →
NOAA U.S. Climate Normals, 1991–2020. A normal is a 30-year average, not a forecast.
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Data from the U.S. National Weather Service (weather.gov) — free public data, not modified by TownTapestry. Not a substitute for official warnings; always follow weather.gov and local authorities.