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Weather & Climate in Riverton, MN
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Riverton has a cool climate with an average annual temperature of 42°F (6°C). Winters average 11°F in January while summers reach 70°F in July. The area gets 276 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 24.5 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 36. The city sits at an elevation of 1,278 feet.
Temperature
11°F Jan (-12°C)
70°F Jul (21°C)
| Annual Average | 42.2°F |
| 22% below US avg | |
| January Average | 11°F (-12°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 276 days/yr |
Geography
| Elevation | 1,278 ft (390 m) |
| Area | 0.9 sq mi (2.2 km²) |
| Population Density | 183/sq mi |
| Coordinates | 46.4570°N, 94.0545°W |
| Timezone | America/Chicago |
| County | Crow Wing County County |
| Nearest Airport | Brainerd Lakes Regional (BRD) 5 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 77.5 / 100 |
| Social Vulnerability | 35.5 / 100 |
| Community Resilience | 97.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M2.5.
| Apr 29, 2011 | Minnesota | M2.5 | 125 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
203 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 18 fatalities, 150 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jun 17, 2010 | EF4 | 86 km | 10.0 mi | 0 |
| Aug 6, 1969 | EF4 | 38 km | 32.3 mi | 12 |
| Jun 11, 1966 | EF4 | 31 km | 72.8 mi | 0 |
| Jun 6, 2008 | EF3 | 94 km | 7.3 mi | 0 |
| Sep 18, 1997 | EF3 | 43 km | 17.0 mi | 1 |
| Jul 5, 1991 | EF3 | 23 km | 6.0 mi | 0 |
| Aug 26, 1977 | EF3 | 36 km | 26.3 mi | 0 |
| Jun 25, 1973 | EF3 | 7 km | 10.0 mi | 0 |
| Aug 6, 1969 | EF3 | 99 km | 18.4 mi | 0 |
| Aug 6, 1969 | EF3 | 68 km | 12.5 mi | 1 |
| Aug 6, 1969 | EF3 | 59 km | 17.3 mi | 0 |
| Jun 30, 1968 | EF3 | 81 km | 0.1 mi | 0 |
| Jun 12, 2024 | EF2 | 30 km | 3.2 mi | 0 |
| Jun 12, 2024 | EF2 | 11 km | 14.7 mi | 0 |
| May 30, 2022 | EF2 | 64 km | 10.5 mi | 0 |
| May 12, 2022 | EF2 | 77 km | 18.2 mi | 0 |
| Jun 19, 2016 | EF2 | 11 km | 3.5 mi | 0 |
| Jul 12, 2015 | EF2 | 78 km | 12.1 mi | 0 |
| Jun 6, 2008 | EF2 | 85 km | 14.1 mi | 0 |
| Jun 20, 2005 | EF2 | 90 km | 0.3 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (9,055 acres, 2007).
| Year | Name | Acres Burned | Distance |
| 2007 | UNNAMED | 9,055 | 38 km |
| 2009 | CENTER TANK RANGE | 6,131 | 41 km |
| 1988 | UNNAMED | 4,475 | 41 km |
| 1988 | UNNAMED | 3,642 | 29 km |
| 2018 | BOY RIVER | 3,546 | 82 km |
| 2003 | UNNAMED | 2,998 | 58 km |
| 2009 | HENDRICKSON IMPACT AREA | 2,757 | 34 km |
| 2015 | TAMARACK | 2,745 | 67 km |
| 1987 | UNNAMED | 2,512 | 59 km |
| 1991 | UNNAMED | 2,486 | 58 km |
| 1988 | UNNAMED | 2,243 | 70 km |
| 1987 | UNNAMED | 1,963 | 53 km |
| 2010 | BOY RIVER - CORE 2010 | 1,872 | 79 km |
| 2019 | UNNAMED | 1,835 | 75 km |
| 2009 | EAST TANK RANGE | 1,801 | 44 km |
| 1987 | UNNAMED | 1,799 | 60 km |
| 2016 | UNNAMED | 1,777 | 78 km |
| 1987 | UNNAMED | 1,760 | 58 km |
| 1987 | UNNAMED | 1,655 | 59 km |
| 1988 | UNNAMED | 1,589 | 19 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 11°F (-12°C) | 0.8 in | Coldest |
| February | 15°F (-10°C) | 0.6 in | Driest |
| March | 27°F (-3°C) | 1.4 in | |
| April | 42°F (6°C) | 2.2 in | |
| May | 56°F (13°C) | 3.0 in | |
| June | 64°F (18°C) | 4.1 in | Wettest |
| July | 70°F (21°C) | 4.0 in | Warmest |
| August | 67°F (19°C) | 3.5 in | |
| September | 57°F (14°C) | 3.1 in | |
| October | 45°F (7°C) | 2.4 in | |
| November | 29°F (-2°C) | 1.4 in | |
| December | 14°F (-10°C) | 0.8 in |
Riverton has a seasonal temperature swing of 59°F / from 11°F in January to 70°F in July. Total annual precipitation is 27.3 inches, with June being the wettest month (4.1") and February the driest (0.6").