Valley County Climate
Valley County, Idaho
Avg Annual Temp
43.1°F
Annual Precip
22.1"
Annual Snowfall
83.2"
Extreme Heat Days
17.42
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Valley County Weather
An Alpine Escape
Valley County averages 43.1°F annually, trailing the national median by over 10 degrees. Its climate is defined by high elevations and significant mountain influence.
Cooler and Wetter Than Average
The county's 43.1°F average is lower than the Idaho state mean of 46.5°F. It is one of the state's moisture magnets, receiving 22.1 inches of precipitation annually.
Heavy Snow Compared to Neighbors
With 83.2 inches of annual snow, Valley is much whiter in winter than the lower-elevation Snake River Plain. It exceeds the state precipitation average by over five inches.
Deep Snow and Pleasant Summers
Winter is dominated by nearly seven feet of snow and a 24.3°F average. Summers are brief but warm, with 17 days hitting 90°F and a July mean of 65.6°F.
Invest in Snow Removal
Heavy-duty snow blowers are essential to manage the 83.2 inches of yearly accumulation. Homeowners should also ensure roofs are rated for significant snow loads.
Frequently Asked Questions
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Track your own weather in Valley County
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.