Clearwater County Climate
Clearwater County, Idaho
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
45.7°F
Annual Precip
37.3"
Annual Snowfall
83.3"
Extreme Heat Days
22
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
7a
Minimum winter temperature range for plant survival
1,668
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Clearwater County
Climate Verdict
Clearwater County has a cool, averaging 45.7°F annually, moderate rainfall of 37.3 inches per year, occasional hot days — 22 per year above 90°F, heavy winter snowfall averaging 83.3 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 28.6°F. summers are pleasantly cool with July averaging 65.8°F. The 37°F seasonal variation provides noticeable but manageable change. December is typically the coldest month and July the warmest.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Clearwater County closely matches the Idaho statewide average temperature of 46.5°F, it is also noticeably wetter, receiving 20.3 inches more precipitation than the state average.
Climate Profile
About Clearwater County Weather
A Wet and Temperate Northern Haven
Clearwater County averages 45.7°F annually, falling below the national median temperature for the United States. Its damp climate sets it apart from the drier high deserts typical of the American West.
Lower Temperatures but Higher Moisture
The county's 45.7°F annual average is slightly cooler than Idaho's state average of 46.5°F. However, its 37.3 inches of annual precipitation more than doubles the state average of 17.0 inches.
The Precipitation Powerhouse of the Region
While neighboring counties struggle with aridity, Clearwater’s 37.3 inches of rain and snow make it one of the wettest spots in Idaho. It receives nearly three times the moisture of nearby Clark County.
Heavy Snowfall and Mild Summer Days
Winter is defined by a massive 83.3 inches of average annual snowfall and a 29.5°F winter mean. Summers are exceptionally comfortable, with a July average of 65.8°F and only 22 days of extreme heat.
Gear Up for Significant Snow Management
With over 83 inches of snow falling annually, residents need heavy-duty clearing equipment and reliable winter tires. Proper roof maintenance is also critical to handle the heavy moisture loads throughout the year.
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.