Cavalier County Climate
Cavalier County, North Dakota
Avg Annual Temp
37.1°F
Annual Precip
20.8"
Annual Snowfall
47.3"
Extreme Heat Days
2.8
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Cavalier County Weather
One of the Nation's Coldest Spots
Cavalier County averages a chilly 37.1°F, nearly 18 degrees below the national median temperature. It represents one of the coldest inhabited environments in the lower 48 states.
Well Below the State Average
The county's 37.1°F average is nearly four degrees colder than the North Dakota state average of 41.0°F. Its annual precipitation of 20.8 inches is slightly higher than the state norm of 19.5 inches.
Colder and Snowier Than Cass
Cavalier is significantly colder than Cass County, with a January average that is nearly 5 degrees lower. It also deals with more snow, averaging 47.3 inches every year.
Short Summers and Intense Winters
Summers are mild with only 3 extreme heat days, but winters are brutal with a December-February average of 7.2°F. January is the toughest month, averaging a mere 3.7°F.
Winterize for Severe Cold
Extreme cold-weather gear is a necessity for the frigid 3.7°F January nights. Homeowners must also prepare for significant snow drifting given the 47.3-inch annual accumulation.
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.