Phillips County Climate
Phillips County, Montana
Avg Annual Temp
43.2°F
Annual Precip
13.7"
Annual Snowfall
18.8"
Extreme Heat Days
23.5
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Phillips County Weather
Chilly Plains Near the Border
This northern county’s 43.2°F average is over 11 degrees colder than the national median. It experiences the sharp, continental climate of the northern Great Plains.
Tracking with the State Average
Phillips sits just below the Montana state average of 43.7°F. Its location makes it prone to colder winter air masses than counties further south.
Low Precipitation in the North
With only 13.7 inches of annual precipitation, Phillips is drier than the state average of 15.4 inches. It sees much less snow at 18.8 inches than the mountainous counties to its west.
Harsh Winters and Brief Heat
Winter is harsh with a January average of 16.9°F, one of the colder marks in the region. Summers still bring 24 days of extreme heat despite the northern latitude.
Preparing for Biting Winter Cold
High-quality winter gear is the priority given the deep 19.1°F winter average. Efficient heating is more critical here than cooling, as extreme heat days are relatively limited.
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.