Morton County Climate
Morton County, North Dakota
Avg Annual Temp
42.4°F
Annual Precip
18.4"
Annual Snowfall
42.5"
Extreme Heat Days
18.633333333333336
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Morton County Weather
Strong Continental Seasonality
Morton County has an average annual temperature of 42.4°F, which is quite chilly compared to the national average. This reflects its location in the heart of the northern plains.
Warmer than the State Norm
The county's average temperature of 42.4°F is nearly 1.5 degrees warmer than the 41.0°F state average. It also sees slightly less precipitation than the state average of 19.5 inches.
Drier than Southern Neighbors
Morton receives 18.4 inches of precipitation, making it drier than McIntosh's 20.7 inches. However, its 19 extreme heat days make it hotter than many eastern peers.
Hot July and Cold January
Summer averages 67.6°F, including a July average of 70.2°F with 19 extreme heat days. Winters are difficult, with 42.5 inches of snow and a 16.0°F average.
Weatherproofing for High Extremes
Plan for high heating costs when January averages hit 13.0°F. Ensure that HVAC systems are serviced before the 19 days of 90°F summer heat arrive.
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.