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Weather & Climate in Belmont, WI
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Belmont experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 18°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 40.0 inches. The area receives 42.8 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 38. The city sits at an elevation of 1,054 feet.
Temperature
18°F Jan (-8°C)
72°F Jul (22°C)
| Annual Average | 46.7°F |
| 14% below US avg | |
| January Average | 18°F (-8°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 1,054 ft (321 m) |
| Area | 0.8 sq mi (2.1 km²) |
| Population Density | 1,158/sq mi |
| Coordinates | 42.7377°N, 90.3343°W |
| Timezone | America/Chicago |
| County | Lafayette County County |
| Nearest Airport | Dubuque Regional (DBQ) 30 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 38.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 33.1 / 100 |
| Social Vulnerability | 24.1 / 100 |
| Community Resilience | 58.1 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| 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: M3.5.
| Sep 2, 1999 | 8 km W of Amboy, Illinois | M3.5 | 135 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
458 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 18 fatalities, 491 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jun 7, 1984 | EF5 | 39 km | 36.0 mi | 9 |
| Jul 3, 1983 | EF4 | 31 km | 0.5 mi | 0 |
| Aug 7, 2021 | EF3 | 54 km | 9.4 mi | 0 |
| Jun 16, 2014 | EF3 | 70 km | 1.0 mi | 0 |
| Aug 18, 2005 | EF3 | 77 km | 18.6 mi | 1 |
| Jun 19, 1993 | EF3 | 56 km | 14.0 mi | 0 |
| Jul 13, 1992 | EF3 | 90 km | 5.0 mi | 0 |
| Jun 17, 1992 | EF3 | 68 km | 16.0 mi | 0 |
| May 8, 1988 | EF3 | 20 km | 16.0 mi | 0 |
| May 30, 1985 | EF3 | 98 km | 34.0 mi | 2 |
| Jun 20, 1974 | EF3 | 84 km | 10.6 mi | 1 |
| Sep 9, 1970 | EF3 | 38 km | 4.7 mi | 0 |
| Aug 2, 1967 | EF3 | 84 km | 0.1 mi | 2 |
| Apr 16, 1967 | EF3 | 41 km | 27.8 mi | 0 |
| Jan 24, 1967 | EF3 | 80 km | 24.9 mi | 0 |
| Jan 24, 1967 | EF3 | 80 km | 7.4 mi | 0 |
| Sep 3, 1964 | EF3 | 57 km | 17.1 mi | 0 |
| Aug 16, 1963 | EF3 | 80 km | 9.6 mi | 0 |
| Aug 16, 1963 | EF3 | 80 km | 9.6 mi | 0 |
| Aug 16, 1963 | EF3 | 80 km | 9.6 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
3 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 | 85 km |
| 2019 | 2019 BADGER RX BURNS | 627 | 85 km |
| 2009 | COLD SPRINGS | 552 | 58 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 18°F (-8°C) | 1.0 in | Coldest, Driest |
| February | 22°F (-6°C) | 1.1 in | |
| March | 33°F (1°C) | 2.3 in | |
| April | 47°F (8°C) | 3.3 in | |
| May | 59°F (15°C) | 3.7 in | |
| June | 68°F (20°C) | 4.5 in | Wettest |
| July | 72°F (22°C) | 4.1 in | Warmest |
| August | 69°F (21°C) | 4.2 in | |
| September | 61°F (16°C) | 3.9 in | |
| October | 50°F (10°C) | 2.5 in | |
| November | 35°F (2°C) | 2.3 in | |
| December | 22°F (-6°C) | 1.5 in |
Belmont has a seasonal temperature swing of 54°F / from 18°F in January to 72°F in July. Total annual precipitation is 34.4 inches, with June being the wettest month (4.5") and January the driest (1.0").