Kootenai County Climate
Kootenai County, Idaho
Avg Annual Temp
46.9°F
Annual Precip
25.0"
Annual Snowfall
27.2"
Extreme Heat Days
13.6
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Kootenai County Weather
Moderate temperatures with northern moisture
Kootenai County averages 46.9°F annually, trending cooler than the national average but warmer than many mountain counties. It is relatively wet for the region, seeing 25.0 inches of precipitation per year.
Mirroring the Idaho state average
The county’s 46.9°F average temperature almost perfectly aligns with the Idaho state average of 46.5°F. However, its 25.0 inches of precipitation is significantly higher than the statewide average of 17.0 inches.
Similar to Latah but drier
Kootenai shares a nearly identical temperature profile with Latah County, but it receives about 20 fewer inches of snow annually. At 27.2 inches of snowfall, it is easier to navigate in winter than the deeper mountain counties.
Balanced seasons and mild summers
The region enjoys mild summers with only 14 days over 90°F and a July average of 67.5°F. Winters are manageable, with January averages staying just below freezing at 29.9°F.
Gear up for a rainy, mild climate
With 25 inches of rain and moderate snow, high-quality outdoor rain gear is a must for year-round activity. Residents benefit from lower cooling costs since extreme heat days are rare compared to southern Idaho.
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.