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Weather & Climate in Petersburg, ND

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

Petersburg has a cool climate with an average annual temperature of 39°F (4°C). Winters average 5°F in January while summers reach 68°F in July / a wide seasonal temperature swing of 63°F. The area gets 269 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 20.2 inches (drier than the 38-inch national average). The area receives 42.5 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 38. The city sits at an elevation of 1,516 feet.

Temperature

5°F Jan (-15°C) 68°F Jul (20°C)
Annual Average38.6°F
29% below US avg
January Average5°F (-15°C)
July Average68°F (20°C)
Sunny Days269 days/yr

Geography

Elevation1,516 ft (462 m)
Area1.0 sq mi (2.7 km²)
Population Density125/sq mi
Coordinates48.0175°N, 98.0006°W
TimezoneAmerica/Chicago
CountyRamsey County County
Nearest AirportGrand Forks International (GFK)
39 miles away

Precipitation & Snow

Annual Rainfall 20.2"
47% below US avg
Snowfall 42.5"
Wettest Month (Jun) 3.27"
Driest Month (Feb) 0.39"

Air Quality

AQI Median38.0
RatingGood

Natural Hazard Risk

Overall RiskVery Low
Risk Score18.3 / 100
Social Vulnerability15.3 / 100
Community Resilience92.9 / 100

Hazard Breakdown

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

Tornado History

486 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 2 fatalities, 37 injuries.

Date Rating Distance Path Fatalities
Jun 17, 2010 EF4 75 km 17.0 mi 0
Aug 26, 2007 EF4 44 km 5.0 mi 1
Jun 6, 1999 EF4 67 km 8.0 mi 0
Aug 27, 2016 EF3 89 km 3.0 mi 0
Aug 26, 2007 EF3 29 km 6.0 mi 0
Jul 18, 2001 EF3 50 km 5.0 mi 0
Jul 21, 1987 EF3 43 km 1.0 mi 0
Jun 21, 1971 EF3 56 km 13.7 mi 0
Aug 11, 1958 EF3 61 km 0.1 mi 0
Jul 16, 1957 EF3 87 km 0.1 mi 0
Aug 9, 2021 EF2 40 km 2.9 mi 0
Jul 4, 2018 EF2 58 km 3.1 mi 0
Jul 11, 2017 EF2 67 km 22.0 mi 0
Jun 9, 2017 EF2 90 km 18.0 mi 0
Aug 3, 2016 EF2 70 km 3.3 mi 0
Jun 27, 2015 EF2 57 km 3.0 mi 0
Jul 21, 2014 EF2 92 km 37.9 mi 0
Aug 10, 2010 EF2 67 km 0.9 mi 0
Jun 17, 2010 EF2 80 km 3.0 mi 0
Jun 17, 2010 EF2 80 km 7.0 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).

Wildfire History

5 wildfires (100+ acres) recorded within 100 km. Largest: BROWN WF (1,430 acres, 2006).

Year Name Acres Burned Distance
2006 BROWN WF 1,430 73 km
2021 DAHL 1,312 79 km
1985 LAKE ALICE 1,214 89 km
1996 P CHICKEN 1,121 53 km
2006 FULLERS LAKE 06 1,109 87 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 5°F (-15°C) 0.6 in Coldest
February 11°F (-12°C) 0.4 in Driest
March 23°F (-5°C) 0.9 in
April 39°F (4°C) 1.4 in
May 54°F (12°C) 2.2 in
June 63°F (17°C) 3.3 in Wettest
July 68°F (20°C) 3.0 in Warmest
August 66°F (19°C) 2.4 in
September 56°F (13°C) 2.0 in
October 43°F (6°C) 1.3 in
November 24°F (-4°C) 0.7 in
December 9°F (-13°C) 0.5 in

Petersburg has a seasonal temperature swing of 63°F / from 5°F in January to 68°F in July. Total annual precipitation is 18.6 inches, with June being the wettest month (3.3") and February the driest (0.4").

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