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Weather & Climate in Mahtowa, MN
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mahtowa has a cool climate with an average annual temperature of 40°F (4°C). Winters average 10°F in January while summers reach 66°F in July. The area gets 249 sunny days per year, above the national average. Annual precipitation totals 32.7 inches. The area receives 71.3 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 36. The city sits at an elevation of 1,177 feet.
Temperature
10°F Jan (-12°C)
66°F Jul (19°C)
| Annual Average | 39.7°F |
| 26% below US avg | |
| January Average | 10°F (-12°C) |
| July Average | 66°F (19°C) |
| Sunny Days | 249 days/yr |
Geography
| Elevation | 1,177 ft (359 m) |
| Area | 10.6 sq mi (27.5 km²) |
| Population Density | 34/sq mi |
| Coordinates | 46.5517°N, 92.6361°W |
| Timezone | America/Chicago |
| County | Carlton County County |
| Nearest Airport | Duluth International (DLH) 29 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 70.1 / 100 |
| Social Vulnerability | 27.5 / 100 |
| Community Resilience | 90.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tornado History
105 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 5 fatalities, 53 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jun 18, 2001 | EF3 | 86 km | 34.0 mi | 2 |
| Aug 6, 1969 | EF3 | 67 km | 17.2 mi | 2 |
| Aug 6, 1969 | EF3 | 52 km | 18.4 mi | 0 |
| Aug 6, 1969 | EF3 | 73 km | 12.5 mi | 1 |
| Jun 30, 1968 | EF3 | 51 km | 0.1 mi | 0 |
| Jun 19, 2016 | EF2 | 99 km | 3.5 mi | 0 |
| Jul 1, 2011 | EF2 | 64 km | 2.9 mi | 0 |
| Jun 17, 2010 | EF2 | 93 km | 7.8 mi | 0 |
| Sep 18, 1997 | EF2 | 78 km | 17.0 mi | 0 |
| Oct 26, 1996 | EF2 | 95 km | 0.7 mi | 0 |
| Jul 3, 1985 | EF2 | 96 km | 33.0 mi | 0 |
| Sep 3, 1980 | EF2 | 58 km | 9.9 mi | 0 |
| Sep 8, 1977 | EF2 | 76 km | 3.6 mi | 0 |
| Jun 7, 1977 | EF2 | 95 km | 0.5 mi | 0 |
| Jul 7, 1970 | EF2 | 20 km | 22.3 mi | 0 |
| Jun 30, 1968 | EF2 | 74 km | 39.0 mi | 0 |
| May 5, 1965 | EF2 | 88 km | 14.3 mi | 0 |
| Jul 8, 1959 | EF2 | 96 km | 0.5 mi | 0 |
| Sep 19, 2024 | EF1 | 62 km | 5.9 mi | 0 |
| Jun 12, 2024 | EF1 | 85 km | 4.7 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: GERMANN ROAD FIRE (6,751 acres, 2013).
| Year | Name | Acres Burned | Distance |
| 2013 | GERMANN ROAD FIRE | 6,751 | 83 km |
| 2003 | UNNAMED | 2,998 | 52 km |
| 2015 | TAMARACK | 2,745 | 47 km |
| 1987 | UNNAMED | 2,512 | 51 km |
| 1991 | UNNAMED | 2,486 | 69 km |
| 2024 | RX-86_FY23 | 2,187 | 75 km |
| 1987 | UNNAMED | 1,963 | 75 km |
| 2000 | UNNAMED | 1,850 | 89 km |
| 1987 | UNNAMED | 1,799 | 72 km |
| 1987 | UNNAMED | 1,760 | 70 km |
| 1988 | UNNAMED | 1,589 | 94 km |
| 2004 | SOUTH MAIN ROAD | 1,384 | 55 km |
| 2006 | WUI RX BURN UNIT 15 | 1,380 | 54 km |
| 1990 | UNNAMED | 1,371 | 68 km |
| 1987 | UNNAMED | 1,352 | 40 km |
| 1997 | UNNAMED | 1,306 | 70 km |
| 2009 | UNNAMED | 1,249 | 69 km |
| 1988 | UNNAMED | 1,226 | 68 km |
| 2000 | S MAIN RO | 1,181 | 53 km |
| 1987 | UNNAMED | 1,096 | 56 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 10°F (-12°C) | 1.0 in | Coldest |
| February | 14°F (-10°C) | 0.7 in | Driest |
| March | 26°F (-4°C) | 1.6 in | |
| April | 40°F (4°C) | 2.1 in | |
| May | 53°F (11°C) | 3.3 in | |
| June | 61°F (16°C) | 4.2 in | Wettest |
| July | 66°F (19°C) | 4.0 in | Warmest |
| August | 65°F (18°C) | 4.1 in | |
| September | 56°F (13°C) | 3.8 in | |
| October | 44°F (7°C) | 2.6 in | |
| November | 28°F (-2°C) | 1.9 in | |
| December | 14°F (-10°C) | 1.1 in |
Mahtowa has a seasonal temperature swing of 56°F / from 10°F in January to 66°F in July. Total annual precipitation is 30.4 inches, with June being the wettest month (4.2") and February the driest (0.7").