Camas County Climate
Camas County, Idaho
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
42.1°F
Annual Precip
14.3"
Annual Snowfall
—
Extreme Heat Days
18
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
6a
Minimum winter temperature range for plant survival
1,605
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Camas County
Climate Verdict
Camas County has a cool, averaging 42.1°F annually, arid conditions receiving just 14.3 inches of precipitation annually, rare extreme heat with only 17.75 days above 90°F annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 18.7°F. summers are pleasantly cool with July averaging 66.5°F. The 48°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Camas County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Camas County is 4.4°F cooler than the Idaho statewide average of 46.5°F, it is somewhat drier than average for Idaho.
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 sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.