Sheridan County Climate
Sheridan County, Montana
Avg Annual Temp
40.0°F
Annual Precip
14.6"
Annual Snowfall
31.3"
Extreme Heat Days
16.86
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Sheridan County Weather
One of the Coldest in the Nation
Sheridan County averages just 40.0°F annually, placing it among the coldest regions in the lower 48 states. This extreme northern climate features long, bitter winters and short, intense summers.
Far Below State Temperature Averages
The county’s 40.0°F average is significantly colder than the Montana state average of 43.7°F. Residents experience a winter that is much harsher than the state norm.
Bitter Cold in the Northeast Corner
Sheridan is one of the state's coldest spots, with a January average of only 10.3°F. It receives 14.6 inches of precipitation annually, which is slightly below the state average of 15.4 inches.
A Winter-Dominant Seasonal Cycle
Winter temperatures average a frigid 13.1°F from December to February, making outdoor activity a challenge. July provides relief with a 67.6°F average, though there are still 17 days of extreme heat.
Survival Gear for the Deep Cold
Heating reliability is the top priority for Sheridan residents facing 10-degree January averages. Ensure your home is well-insulated and your vehicle is equipped for sub-zero starts and 31.3 inches of seasonal snow.
Frequently Asked Questions
What is the average temperature in Sheridan County?
How much rain does Sheridan County get?
Does it snow in Sheridan County?
How hot does Sheridan County get in summer?
How cold are winters in Sheridan County?
Track your own weather in Sheridan County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
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.