Toole County Climate
Toole County, Montana
Avg Annual Temp
42.3°F
Annual Precip
13.0"
Annual Snowfall
57.9"
Extreme Heat Days
14.38
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Toole County Weather
Cold and dry northern plains
Toole County sits at an average annual temperature of 42.3°F, roughly 11 degrees cooler than the national median. It is a semi-arid region, receiving only 13.0 inches of precipitation annually.
Among Montana's cooler counties
The county's 42.3°F average falls below the Montana state average of 43.7°F. Winter is particularly harsh here, with a December-February average of 21.4°F, which is notably colder than the state's southern regions.
Windiest and coldest in the north
Toole County averages 14 days of extreme heat, which is higher than neighbor Teton County but less than Valley County to the east. It sees 57.9 inches of annual snowfall, creating a more rugged winter environment than many nearby plains counties.
Deep winter and sharp summers
January temperatures plunge to an average of 20.1°F, making it one of the colder spots in the state. Conversely, July brings a warm average of 66.1°F, with heat occasionally spiking over 90°F for two weeks of the year.
Winterize for the long haul
High-efficiency heating systems are a necessity given the 21.4°F winter average. Residents should also plan for 57.9 inches of snow, necessitating reliable 4WD vehicles and emergency kits for winter travel across the open plains.
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.