Camas County Climate
Camas County, Idaho
Avg Annual Temp
42.1°F
Annual Precip
14.3"
Annual Snowfall
—
Extreme Heat Days
17.75
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Camas County Weather
One of the Nation's Coldest Counties
With an annual average temperature of 42.1°F, Camas County is among the coldest regions in the lower 48 states. It is also quite arid, receiving only 14.3 inches of precipitation annually.
Well Below Idaho's Average Temperature
Camas County's annual average of 42.1°F is over four degrees lower than the Idaho state average of 46.5°F. Its precipitation of 14.3 inches also falls short of the 17.0-inch state average.
Similar Temperature to Arid Butte County
Camas County mirrors the 42°F range found in Butte County, though it receives slightly more moisture at 14.3 inches. While snowfall data is unavailable, the 20.0°F winter average suggests significant freezing conditions.
Cold Winters and Moderate Summer Highs
Winters are long and cold, with a December-February average of 20.0°F and January hitting 18.7°F. Summers are pleasant with a July average of 66.5°F, though there are 18 days of extreme heat.
Focus on Extreme Cold Preparation
Robust home insulation and backup heating sources are essential for the 18.7°F January average. Residents should also prepare for 18 days of 90°F heat during the short but intense summer window.
Frequently Asked Questions
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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.