Dunn County Climate
Dunn County, North Dakota
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
41.9°F
Annual Precip
17.5"
Annual Snowfall
41.6"
Extreme Heat Days
21
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
4a
Minimum winter temperature range for plant survival
2,050
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Dunn County
Climate Verdict
Dunn County has a cool, averaging 41.9°F annually, semi-arid conditions with only 17.5 inches of annual precipitation, occasional hot days — 20.666666666666668 per year above 90°F, moderate snowfall of 41.6 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 13.9°F. summers are pleasantly cool with July averaging 69.0°F. Residents experience a substantial 55°F difference between winter and summer.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Dunn County closely matches the North Dakota statewide average temperature of 40.9°F.
Climate Profile
About Dunn County Weather
Semi-Arid and Wide Ranging
Dunn County's 41.9°F annual average trails the national median by roughly 13 degrees. The climate is semi-arid, featuring wide temperature swings and limited moisture.
Standard Temps with Less Rain
The average temperature of 41.9°F is very close to the state average of 41.0°F. However, the county is drier than most, receiving 17.5 inches of precipitation versus the 19.5-inch state mean.
More Heat Than Northern Peers
Dunn experiences double the extreme heat days of Divide County, logging 21 days above 90°F. Snowfall remains similar to regional neighbors at 41.6 inches per year.
Hot Summers and Moderate Cold
Summers feature 21 days of 90°F heat and a July average of 69.0°F. Winters are somewhat milder than the east, with a January average of 13.9°F.
Prepare for Summer Heatwaves
Reliable air conditioning is vital for the 21 days of extreme summer heat. Winter preparations should focus on wind protection to manage the 41.6 inches of annual snow.
Frequently Asked Questions
What is the average temperature in Dunn County?
How much rain does Dunn County get?
Does it snow in Dunn County?
How hot does Dunn County get in summer?
How cold are winters in Dunn County?
Track your own weather in Dunn County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.