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Weather & Climate in Mandan, ND

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Mandan has a cool climate with an average annual temperature of 42°F (6°C). Winters average 13°F in January while summers reach 70°F in July. The area gets 273 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 18.4 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 38. The city sits at an elevation of 1,660 feet.

Temperature

13°F Jan (-11°C) 70°F Jul (21°C)
Annual Average42.4°F
21% below US avg
January Average13°F (-11°C)
July Average70°F (21°C)
Sunny Days273 days/yr

Geography

Elevation1,660 ft (506 m)
Area11.1 sq mi (28.8 km²)
Population Density1,797/sq mi
Coordinates46.8295°N, 100.8871°W
TimezoneAmerica/Chicago
CountyBurleigh County County
Nearest AirportBismarck Municipal (BIS)
8 miles away

Precipitation & Snow

Annual Rainfall 18.4"
52% below US avg
Wettest Month (Jun) 2.83"
Driest Month (Jan) 0.39"

Air Quality

AQI Median38.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Moderate
Risk Score85.1 / 100
Social Vulnerability13.8 / 100
Community Resilience97.2 / 100

Hazard Breakdown

Tornado Relatively Moderate
Earthquake Very Low
Wildfire Relatively Low
Flood Relatively Moderate
Hail Relatively High
Strong Wind Relatively Moderate
Heat Wave Relatively Low
Winter Weather Very High
Lightning Relatively Low
Ice Storm Very High
Drought Very Low
Cold Wave Relatively High
Landslide Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Tornado History

250 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 8 fatalities, 100 injuries.

Date Rating Distance Path Fatalities
May 29, 1953 EF5 45 km 14.8 mi 2
Jul 4, 1978 EF4 90 km 26.0 mi 5
Jul 1, 1952 EF4 38 km 48.0 mi 1
Jul 30, 1981 EF3 22 km 23.9 mi 0
May 25, 1978 EF3 1 km 2.5 mi 0
Jun 18, 1956 EF3 87 km 10.6 mi 0
Jun 5, 1956 EF3 87 km 0.1 mi 0
Jul 1, 1955 EF3 67 km 1.3 mi 0
Jul 10, 2011 EF2 96 km 12.0 mi 0
Jun 12, 2011 EF2 99 km 6.0 mi 0
Aug 24, 2006 EF2 66 km 2.0 mi 0
Jul 17, 2001 EF2 98 km 30.0 mi 0
Jun 3, 1999 EF2 75 km 4.0 mi 0
Jun 18, 1990 EF2 62 km 6.0 mi 0
May 30, 1985 EF2 62 km 0.5 mi 0
May 24, 1975 EF2 84 km 33.7 mi 0
Aug 19, 1974 EF2 72 km 0.1 mi 0
Aug 19, 1974 EF2 90 km 0.1 mi 0
May 26, 1974 EF2 70 km 1.0 mi 0
Jun 4, 1971 EF2 67 km 0.5 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: TENBROOK (30,588 acres, 2002).

Year Name Acres Burned Distance
2002 TENBROOK 30,588 81 km
2006 LUND 9,425 80 km
1988 UNNAMED 7,593 66 km
2003 MCCLEAN BOTTOMS 6,421 32 km
2022 HWY31 AND 101ST WEST 4,879 97 km
2015 CANNON BALL 3,068 58 km
2004 FISCHER 2,578 62 km
2012 CORNSTALK 2,561 98 km
2000 NEUGERFIRE 2,150 61 km
2024 STATELINE 2,123 100 km
2003 24 2,119 90 km
2006 RIVERDALE WOODS/DOWNSTREAM 1,705 82 km
2002 BISRURAL2 1,649 31 km
2015 BIG LAKE FIRE 1,587 60 km
1993 UNNAMED 1,492 30 km
2024 CEDAR CREEK 1,388 89 km
2002 BALE II 1,179 55 km
1999 SOLEN 1,155 54 km
2006 RICE LAKE 1 1,150 48 km
2007 ROBINSON SUNFLOWER 1,115 79 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 13°F (-11°C) 0.4 in Coldest, Driest
February 18°F (-8°C) 0.4 in
March 29°F (-2°C) 0.7 in
April 43°F (6°C) 1.7 in
May 56°F (13°C) 2.4 in
June 66°F (19°C) 2.8 in Wettest
July 70°F (21°C) 2.6 in Warmest
August 70°F (21°C) 2.0 in
September 59°F (15°C) 1.5 in
October 46°F (8°C) 1.3 in
November 29°F (-2°C) 0.6 in
December 16°F (-9°C) 0.4 in

Mandan has a seasonal temperature swing of 58°F / from 13°F in January to 70°F in July. Total annual precipitation is 16.8 inches, with June being the wettest month (2.8") and January the driest (0.4").

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