Weather & Climate in Harrison, MI
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Harrison experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 21°F in January while summers reach 70°F in July. Annual precipitation totals 34.0 inches. The area receives 48.5 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 1,196 feet.
Temperature
21°F Jan (-6°C)
70°F Jul (21°C)
| Annual Average | 45.7°F |
| 15% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 70°F (21°C) |
Geography
| Elevation | 1,196 ft (365 m) |
| Area | 3.7 sq mi (9.6 km²) |
| Population Density | 612/sq mi |
| Coordinates | 44.0130°N, 84.8106°W |
| Timezone | America/Detroit |
| County | Roscommon County County |
| Nearest Airport | Mbs International (MBS) 49 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 56.7 / 100 |
| Social Vulnerability | 87.0 / 100 |
| Community Resilience | 69.1 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | No Rating |
| Cold Wave | Relatively Low |
| Landslide | Very 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: M3.5.
| Sep 2, 1994 | 5 km SSW of DeWitt, Michigan | M3.5 | 136 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
192 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 5 fatalities, 107 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Mar 27, 1991 | EF3 | 80 km | 21.0 mi | 0 |
| Mar 27, 1991 | EF3 | 76 km | 35.0 mi | 0 |
| Jun 12, 1984 | EF3 | 86 km | 48.0 mi | 0 |
| Mar 30, 1976 | EF3 | 76 km | 6.4 mi | 1 |
| Mar 30, 1976 | EF3 | 49 km | 11.4 mi | 0 |
| Apr 23, 1968 | EF3 | 64 km | 60.9 mi | 0 |
| Oct 18, 2007 | EF2 | 80 km | 4.5 mi | 1 |
| Oct 18, 2007 | EF2 | 81 km | 11.6 mi | 0 |
| May 31, 1999 | EF2 | 62 km | 1.8 mi | 0 |
| Jul 13, 1995 | EF2 | 56 km | 5.0 mi | 0 |
| May 28, 1995 | EF2 | 82 km | 1.0 mi | 0 |
| Apr 24, 1993 | EF2 | 57 km | 7.0 mi | 0 |
| Mar 27, 1991 | EF2 | 51 km | 6.0 mi | 0 |
| Mar 27, 1991 | EF2 | 27 km | 4.0 mi | 0 |
| Jun 8, 1985 | EF2 | 58 km | 24.0 mi | 0 |
| Jun 15, 1982 | EF2 | 87 km | 19.0 mi | 0 |
| Jun 15, 1982 | EF2 | 89 km | 5.9 mi | 0 |
| Jul 4, 1977 | EF2 | 91 km | 2.5 mi | 0 |
| Jul 23, 1976 | EF2 | 71 km | 3.3 mi | 0 |
| May 21, 1975 | EF2 | 23 km | 1.6 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: MERIDIAN BOUNDARY COMPLEX (MERIDIAN ROAD) (7,478 acres, 2010).
| Year | Name | Acres Burned | Distance |
| 2010 | MERIDIAN BOUNDARY COMPLEX (MERIDIAN ROAD) | 7,478 | 67 km |
| 1990 | CRAWFORD15 | 6,868 | 79 km |
| 2006 | HUGHES LAKE FIRE | 5,285 | 73 km |
| 2000 | NO PABLO | 5,266 | 90 km |
| 1994 | UNNAMED | 4,059 | 95 km |
| 2006 | UNNAMED | 4,020 | 93 km |
| 2014 | UNNAMED | 3,759 | 97 km |
| 2018 | BRITTLE 04/30/2018 | 3,484 | 96 km |
| 2005 | ROSCOMMON4 | 2,109 | 30 km |
| 1987 | OGEMAW22 | 1,952 | 72 km |
| 1995 | UNNAMED | 1,844 | 95 km |
| 2017 | BRITTLE 20 AND 23 RX | 1,557 | 97 km |
| 1988 | OGEMAW13 | 1,547 | 66 km |
| 2024 | RANGE 30 24-03 RX | 1,523 | 80 km |
| 1985 | CRAWFORD45 | 1,412 | 95 km |
| 1998 | OGEMAW16 | 1,391 | 65 km |
| 2008 | FOUR MILE | 1,348 | 70 km |
| 2015 | UNNAMED | 1,276 | 97 km |
| 2006 | UNNAMED | 1,267 | 64 km |
| 2010 | MERIDIAN BOUNDARY COMPLEX (RANGE 9) | 1,202 | 69 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 21°F (-6°C) | 2.2 in | Coldest |
| February | 22°F (-5°C) | 1.7 in | Driest |
| March | 32°F (-0°C) | 2.1 in | |
| April | 43°F (6°C) | 3.5 in | |
| May | 56°F (13°C) | 3.8 in | Wettest |
| June | 66°F (19°C) | 3.5 in | |
| July | 70°F (21°C) | 3.2 in | Warmest |
| August | 68°F (20°C) | 3.4 in | |
| September | 60°F (16°C) | 2.8 in | |
| October | 48°F (9°C) | 3.2 in | |
| November | 37°F (3°C) | 2.5 in | |
| December | 27°F (-3°C) | 2.2 in |
Harrison has a seasonal temperature swing of 49°F / from 21°F in January to 70°F in July. Total annual precipitation is 34.0 inches, with May being the wettest month (3.8") and February the driest (1.7").