Weather & Climate in Mount Sterling, WI
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mount Sterling experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 17°F in January while summers reach 72°F in July. Annual precipitation totals 37.7 inches. The area receives 37.8 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 1,162 feet.
Temperature
17°F Jan (-8°C)
72°F Jul (22°C)
| Annual Average | 46.5°F |
| 14% below US avg | |
| January Average | 17°F (-8°C) |
| July Average | 72°F (22°C) |
Geography
| Elevation | 1,162 ft (354 m) |
| Area | 1.4 sq mi (3.7 km²) |
| Population Density | 127/sq mi |
| Coordinates | 43.3162°N, 90.9292°W |
| Timezone | America/Chicago |
| County | Crawford County County |
| Nearest Airport | Tri-County Regional (LNR) 38 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 46.2 / 100 |
| Social Vulnerability | 43.3 / 100 |
| Community Resilience | 73.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tornado History
354 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 15 fatalities, 395 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jun 7, 1984 | EF5 | 86 km | 36.0 mi | 9 |
| Jul 3, 1983 | EF4 | 75 km | 0.5 mi | 0 |
| Apr 19, 1957 | EF4 | 86 km | 21.1 mi | 1 |
| Aug 7, 2021 | EF3 | 27 km | 9.4 mi | 0 |
| May 8, 1988 | EF3 | 100 km | 16.0 mi | 0 |
| May 30, 1985 | EF3 | 71 km | 34.0 mi | 2 |
| Jun 5, 1980 | EF3 | 46 km | 26.9 mi | 0 |
| Jun 24, 1971 | EF3 | 77 km | 0.1 mi | 1 |
| Sep 9, 1970 | EF3 | 93 km | 4.7 mi | 0 |
| May 5, 1965 | EF3 | 91 km | 65.2 mi | 0 |
| Sep 3, 1964 | EF3 | 28 km | 17.1 mi | 0 |
| Aug 16, 1963 | EF3 | 98 km | 9.6 mi | 0 |
| Aug 16, 1963 | EF3 | 98 km | 9.6 mi | 0 |
| Aug 16, 1963 | EF3 | 98 km | 9.6 mi | 0 |
| May 26, 1959 | EF3 | 86 km | 34.3 mi | 0 |
| Apr 19, 1957 | EF3 | 61 km | 9.0 mi | 0 |
| May 10, 1953 | EF3 | 52 km | 6.6 mi | 0 |
| Jun 15, 2022 | EF2 | 72 km | 22.9 mi | 0 |
| Jun 29, 2014 | EF2 | 69 km | 5.1 mi | 0 |
| Jun 29, 2014 | EF2 | 53 km | 29.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
2 wildfires (100+ acres) recorded within 100 km. Largest: 2018 BADGER RX BURNS (659 acres, 2018).
| Year | Name | Acres Burned | Distance |
| 2018 | 2018 BADGER RX BURNS | 659 | 96 km |
| 2019 | 2019 BADGER RX BURNS | 627 | 96 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 17°F (-8°C) | 1.3 in | Coldest |
| February | 22°F (-6°C) | 1.2 in | Driest |
| March | 34°F (1°C) | 2.0 in | |
| April | 46°F (8°C) | 3.9 in | |
| May | 58°F (14°C) | 4.2 in | |
| June | 68°F (20°C) | 5.6 in | Wettest |
| July | 72°F (22°C) | 4.8 in | Warmest |
| August | 70°F (21°C) | 4.4 in | |
| September | 62°F (17°C) | 3.9 in | |
| October | 49°F (10°C) | 2.7 in | |
| November | 36°F (2°C) | 2.1 in | |
| December | 24°F (-5°C) | 1.6 in |
Mount Sterling has a seasonal temperature swing of 55°F / from 17°F in January to 72°F in July. Total annual precipitation is 37.7 inches, with June being the wettest month (5.6") and February the driest (1.2").