Lake County Climate
Lake County, Montana
Avg Annual Temp
45.9°F
Annual Precip
17.2"
Annual Snowfall
33.6"
Extreme Heat Days
13.94
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Lake County Weather
A temperate pocket in the Rockies
Lake County averages 45.9°F annually, making it warmer than most of its Montana peers but still below the national median. It receives 17.2 inches of annual precipitation, providing a semi-moist mountain environment.
Among the warmest counties in Montana
Lake County's 45.9°F average is over two degrees higher than the Montana state average of 43.7°F. This makes it one of the more temperate regions in the state.
Warmer than Granite and Glacier
Lake County is notably warmer than nearby Granite (42.5°F) and much milder than Glacier County (39.9°F). It enjoys some of the most moderate temperatures in western Montana.
Milder winters and manageable summers
Winters are relatively mild for Montana, with a January average of 27.5°F and 33.6 inches of snow. Summers stay pleasant with only 14 days over 90°F and a July average of 67.4°F.
Plan for a balanced, four-season climate
With 14 extreme heat days and 33.6 inches of snow, residents need a versatile gear set for all seasons. The 28.3°F winter average makes it slightly easier to heat homes than in the state's colder northern counties.
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.