Grant County Climate
Grant County, North Dakota
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
42.8°F
Annual Precip
17.4"
Annual Snowfall
48.1"
Extreme Heat Days
18
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
4a
Minimum winter temperature range for plant survival
2,198
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Grant County
Climate Verdict
Grant County has a cool, averaging 42.8°F annually, semi-arid conditions with only 17.4 inches of annual precipitation, rare extreme heat with only 18.366666666666667 days above 90°F annually, moderate snowfall of 48.1 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 14.6°F. summers are warm — July averages 70.2°F. Residents experience a substantial 56°F difference between winter and summer.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Grant County closely matches the North Dakota statewide average temperature of 40.9°F, it is somewhat drier than average for North Dakota.
Climate Profile
About Grant County Weather
A Warmer Pocket in the High Plains
Grant County averages 42.8°F annually, which is roughly 12 degrees cooler than the national median. Despite the gap with the national average, it maintains a milder profile than much of the northern Midwest.
Outpacing the North Dakota Average
The county’s 42.8°F average temperature puts it well above the state mark of 41.0°F. This positioning makes it one of the warmer regions in North Dakota.
Warmer and Drier than the East
Grant is notably warmer than Griggs County’s 39.3°F average. It is also significantly drier, receiving only 17.4 inches of precipitation compared to the 22.3 inches found in Grand Forks.
Hot Summers and Moderate Snowfall
Grant County sees 18 extreme heat days per year where temperatures top 90°F. While winters are cold at 17.3°F on average, the county still receives a substantial 48.1 inches of snow annually.
Balance Cooling and Winter Readiness
With nearly three weeks of 90-degree weather, functional air conditioning is more critical here than in northern counties. However, winter gear remains a priority for the 14.6°F January nights.
Frequently Asked Questions
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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.