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Weather & Climate in Winn, MI
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Winn experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 23°F in January while summers reach 72°F in July. The area gets 260 sunny days per year, above the national average. Annual precipitation totals 35.5 inches. Air quality is rated Good with a median AQI of 38. The city sits at an elevation of 896 feet.
Temperature
23°F Jan (-5°C)
72°F Jul (22°C)
| Annual Average | 47.8°F |
| 11% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 896 ft (273 m) |
| Area | 0.6 sq mi (1.5 km²) |
| Population Density | 382/sq mi |
| Coordinates | 43.5187°N, 84.9011°W |
| Timezone | America/Detroit |
| County | Isabella County County |
| Nearest Airport | Mbs International (MBS) 41 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 38.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 66.1 / 100 |
| Social Vulnerability | 57.1 / 100 |
| Community Resilience | 66.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Very Low |
| Winter Weather | Relatively High |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | No Rating |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
2 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.2.
| May 2, 2015 | 5 km S of Galesburg, Michigan | M4.2 | 149 km | 4 km |
| Sep 2, 1994 | 5 km SSW of DeWitt, Michigan | M3.5 | 84 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
297 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 127 fatalities, 1,164 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jun 8, 1953 | EF5 | 97 km | 18.9 mi | 116 |
| Apr 21, 1967 | EF4 | 66 km | 12.0 mi | 0 |
| Apr 11, 1965 | EF4 | 99 km | 20.6 mi | 5 |
| Apr 11, 1965 | EF4 | 77 km | 21.0 mi | 1 |
| Jun 21, 1996 | EF3 | 95 km | 1.0 mi | 0 |
| Jun 12, 1984 | EF3 | 79 km | 48.0 mi | 0 |
| Mar 30, 1976 | EF3 | 87 km | 11.4 mi | 0 |
| Apr 23, 1968 | EF3 | 51 km | 60.9 mi | 0 |
| Apr 21, 1967 | EF3 | 99 km | 13.6 mi | 0 |
| Mar 14, 2019 | EF2 | 93 km | 18.2 mi | 0 |
| Jun 22, 2015 | EF2 | 98 km | 11.3 mi | 0 |
| May 31, 1999 | EF2 | 56 km | 1.8 mi | 0 |
| Jul 13, 1995 | EF2 | 92 km | 5.0 mi | 0 |
| Jul 4, 1994 | EF2 | 49 km | 0.3 mi | 0 |
| Apr 24, 1993 | EF2 | 94 km | 7.0 mi | 0 |
| Mar 27, 1991 | EF2 | 96 km | 6.0 mi | 0 |
| Mar 27, 1991 | EF2 | 60 km | 4.0 mi | 0 |
| Nov 27, 1989 | EF2 | 77 km | 6.0 mi | 0 |
| Aug 14, 1988 | EF2 | 98 km | 26.6 mi | 1 |
| Apr 28, 1986 | EF2 | 87 km | 26.5 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
3 wildfires (100+ acres) recorded within 100 km. Largest: ROSCOMMON4 (2,109 acres, 2005).
| Year | Name | Acres Burned | Distance |
| 2005 | ROSCOMMON4 | 2,109 | 83 km |
| 1994 | COUNTY LINE | 735 | 86 km |
| 2019 | BALDWIN FUELS UNITS 1/2/6AB | 619 | 91 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 1.7 in | |
| February | 22°F (-6°C) | 1.3 in | Coldest, Driest |
| March | 32°F (-0°C) | 2.1 in | |
| April | 44°F (7°C) | 3.0 in | |
| May | 56°F (13°C) | 2.9 in | |
| June | 65°F (18°C) | 3.2 in | |
| July | 72°F (22°C) | 2.6 in | Warmest |
| August | 68°F (20°C) | 3.7 in | |
| September | 60°F (15°C) | 3.7 in | Wettest |
| October | 48°F (9°C) | 2.8 in | |
| November | 37°F (3°C) | 2.7 in | |
| December | 26°F (-3°C) | 2.1 in |
Winn has a seasonal temperature swing of 50°F / from 22°F in February to 72°F in July. Total annual precipitation is 31.8 inches, with September being the wettest month (3.7") and February the driest (1.3").