Sanders County Climate
Sanders County, Montana
Avg Annual Temp
46.3°F
Annual Precip
27.7"
Annual Snowfall
50.3"
Extreme Heat Days
25.9
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Sanders County Weather
The Wet and Warm West
Sanders County is a climate outlier with an average annual temperature of 46.3°F and high precipitation levels. It is significantly wetter and warmer than the typical Montana county profile.
Exceeding State Precipitation Norms
At 27.7 inches of annual precipitation, Sanders County receives nearly double the Montana average of 15.4 inches. This moisture supports a lush landscape rarely seen in the eastern half of the state.
Leading Neighbors in Temperature and Moisture
Sanders is warmer than the state average (46.3°F vs 43.7°F) and much wetter. It experiences 50.3 inches of annual snow, keeping it competitive with the snowiest regions in the state.
Temperate Winters and Humid Summers
Winters are relatively mild for Montana, with a January average of 28.4°F and 50.3 inches of snow. July stays comfortable at 66.9°F, though the county still sees 26 extreme heat days annually.
Prepare for a Moist Climate
Rain and snow gear are essential given the 27.7 inches of annual precipitation. Homeowners should focus on moisture control and drainage to manage the significantly higher-than-average local rainfall.
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.