Grand Forks County Climate
Grand Forks County, North Dakota
Avg Annual Temp
40.0°F
Annual Precip
22.3"
Annual Snowfall
48.5"
Extreme Heat Days
7.433333333333333
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Grand Forks County Weather
Grand Forks Faces a Rugged Continental Climate
With an average annual temperature of 40.0°F, Grand Forks is significantly cooler than the national median of approximately 55°F. This humid continental region experiences dramatic seasonal shifts typical of the northern plains.
Trailing the State Temperature Average
The county's 40.0°F annual average sits one full degree below the North Dakota state average of 41.0°F. This makes it one of the cooler jurisdictions in a state already known for its frigid conditions.
Colder than Neighbors to the West
Grand Forks remains slightly warmer than Griggs County to the south, which averages 39.3°F. However, it cannot match the 42.8°F average seen in southwestern counties like Grant.
Frigid Winters Meet Mild Summers
Winter temperatures plummet to a mean of 10.3°F, supported by 48.5 inches of annual snowfall. Summers are pleasant but short, with July averaging 69.0°F and only 7 days reaching above 90°F.
Prepare for Deep Freezes and Snow
High-efficiency heating systems are essential to handle January lows that average 6.4°F. Residents should also invest in heavy-duty snow removal equipment to manage the nearly 50 inches of annual accumulation.
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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.