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Weather & Climate in Calvin, ND
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Calvin has a cool climate with an average annual temperature of 39°F (4°C). Winters average 6°F in January while summers reach 68°F in July / a wide seasonal temperature swing of 62°F. The area gets 274 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 19.0 inches (drier than the 38-inch national average). The area receives 37.6 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 38. The city sits at an elevation of 1,618 feet.
Temperature
6°F Jan (-15°C)
68°F Jul (20°C)
| Annual Average | 38.5°F |
| 29% below US avg | |
| January Average | 6°F (-15°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 274 days/yr |
Geography
| Elevation | 1,618 ft (493 m) |
| Area | 0.2 sq mi (0.6 km²) |
| Population Density | 68/sq mi |
| Coordinates | 48.8518°N, 98.9380°W |
| Timezone | America/Chicago |
| County | Cavalier County County |
| Nearest Airport | Devils Lake Regional (DVL) 51 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 38.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 11.8 / 100 |
| Social Vulnerability | 56.0 / 100 |
| Community Resilience | 22.1 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Very Low |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tornado History
206 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 1 fatality, 10 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jun 6, 1999 | EF4 | 89 km | 8.0 mi | 0 |
| Jul 7, 2008 | EF3 | 72 km | 20.6 mi | 0 |
| Jun 9, 2017 | EF2 | 88 km | 8.0 mi | 0 |
| Jun 9, 2017 | EF2 | 54 km | 18.0 mi | 0 |
| Aug 3, 2016 | EF2 | 59 km | 20.0 mi | 0 |
| May 19, 2004 | EF2 | 89 km | 0.7 mi | 0 |
| Jun 6, 1999 | EF2 | 95 km | 3.1 mi | 0 |
| Jun 6, 1999 | EF2 | 95 km | 3.0 mi | 0 |
| Jun 24, 1985 | EF2 | 53 km | 0.5 mi | 0 |
| Jun 12, 1976 | EF2 | 86 km | 0.1 mi | 0 |
| Aug 21, 1973 | EF2 | 94 km | 0.1 mi | 0 |
| Jun 21, 1971 | EF2 | 72 km | 0.1 mi | 0 |
| Jun 21, 1971 | EF2 | 21 km | 8.9 mi | 0 |
| Aug 5, 1966 | EF2 | 84 km | 0.1 mi | 0 |
| May 20, 1965 | EF2 | 49 km | 4.3 mi | 0 |
| Jun 6, 1959 | EF2 | 36 km | 0.1 mi | 0 |
| Jun 24, 2022 | EF1 | 85 km | 2.2 mi | 0 |
| Aug 9, 2021 | EF1 | 45 km | 5.0 mi | 0 |
| Jul 17, 2020 | EF1 | 69 km | 0.3 mi | 0 |
| Jul 4, 2018 | EF1 | 68 km | 1.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
4 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (4,371 acres, 1989).
| Year | Name | Acres Burned | Distance |
| 1989 | UNNAMED | 4,371 | 67 km |
| 1992 | CLARK II | 2,443 | 60 km |
| 2021 | DAHL | 1,312 | 37 km |
| 1985 | LAKE ALICE | 1,214 | 60 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 6°F (-15°C) | 0.8 in | Coldest |
| February | 9°F (-13°C) | 0.6 in | Driest |
| March | 21°F (-6°C) | 0.9 in | |
| April | 38°F (3°C) | 1.1 in | |
| May | 53°F (12°C) | 2.4 in | |
| June | 62°F (17°C) | 3.4 in | Wettest |
| July | 68°F (20°C) | 3.0 in | Warmest |
| August | 65°F (18°C) | 2.6 in | |
| September | 55°F (13°C) | 1.9 in | |
| October | 42°F (6°C) | 1.2 in | |
| November | 23°F (-5°C) | 0.8 in | |
| December | 8°F (-13°C) | 0.8 in |
Calvin has a seasonal temperature swing of 62°F / from 6°F in January to 68°F in July. Total annual precipitation is 19.5 inches, with June being the wettest month (3.4") and February the driest (0.6").