Garfield County Climate
Garfield County, Montana
Avg Annual Temp
44.9°F
Annual Precip
14.0"
Annual Snowfall
28.1"
Extreme Heat Days
34.574999999999996
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Garfield County Weather
A dry, temperate climate in the High Plains
Garfield County maintains an average annual temperature of 44.9°F, sitting nearly 10 degrees below the national median. With only 14.0 inches of annual precipitation, it operates as a semi-arid environment compared to wetter regions across the country.
Warmer than the Montana state average
While Montana averages 43.7°F annually, Garfield County is slightly warmer at 44.9°F. This makes it one of the more temperate areas in a state known for its harsh northern climate.
Matching temperatures with Golden Valley neighbors
Garfield County shares an identical 44.9°F average with Golden Valley County to the southwest. However, it remains significantly warmer than Hill County to the northwest, which averages just 42.1°F.
Hot summers meet standard northern winters
Summers are intense with 35 days reaching 90°F or higher and a July average of 71.5°F. Winters bring a sharp contrast, with temperatures dropping to a January average of 19.5°F alongside 28.1 inches of annual snowfall.
Prepare for extreme summer heat peaks
Residents should invest in robust cooling systems to handle the five weeks of extreme heat each year. Winter preparations must include reliable heating and snow removal for the consistent sub-20 degree January nights.
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.