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Weather & Climate in Westby, WI
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Westby has a cool climate with an average annual temperature of 44°F (7°C). Winters average 15°F in January while summers reach 69°F in July. The area gets 260 sunny days per year, above the national average. Annual precipitation totals 38.0 inches. The area receives 47.2 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 1,296 feet.
Temperature
15°F Jan (-10°C)
69°F Jul (21°C)
| Annual Average | 43.7°F |
| 19% below US avg | |
| January Average | 15°F (-10°C) |
| July Average | 69°F (21°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 1,296 ft (395 m) |
| Area | 2.6 sq mi (6.7 km²) |
| Population Density | 881/sq mi |
| Coordinates | 43.6529°N, 90.8582°W |
| Timezone | America/Chicago |
| County | Vernon County County |
| Nearest Airport | La Crosse Regional (LSE) 25 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 38.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 75.0 / 100 |
| Social Vulnerability | 79.4 / 100 |
| Community Resilience | 65.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tornado History
301 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 5 fatalities, 199 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jul 3, 1983 | EF4 | 96 km | 0.5 mi | 0 |
| Apr 19, 1957 | EF4 | 60 km | 21.1 mi | 1 |
| Aug 7, 2021 | EF3 | 59 km | 9.4 mi | 0 |
| Aug 27, 1994 | EF3 | 90 km | 10.5 mi | 2 |
| Jul 3, 1983 | EF3 | 69 km | 1.0 mi | 0 |
| Jun 5, 1980 | EF3 | 29 km | 26.9 mi | 0 |
| May 5, 1965 | EF3 | 95 km | 65.2 mi | 0 |
| Sep 3, 1964 | EF3 | 54 km | 17.1 mi | 0 |
| Aug 16, 1963 | EF3 | 100 km | 9.6 mi | 0 |
| Aug 16, 1963 | EF3 | 100 km | 9.6 mi | 0 |
| Aug 16, 1963 | EF3 | 100 km | 9.6 mi | 0 |
| May 26, 1959 | EF3 | 59 km | 34.3 mi | 0 |
| Apr 19, 1957 | EF3 | 36 km | 9.0 mi | 0 |
| May 10, 1953 | EF3 | 87 km | 6.6 mi | 0 |
| Jun 15, 2022 | EF2 | 38 km | 22.9 mi | 0 |
| Dec 15, 2021 | EF2 | 95 km | 3.1 mi | 0 |
| Dec 15, 2021 | EF2 | 96 km | 2.8 mi | 0 |
| Jun 29, 2014 | EF2 | 92 km | 5.1 mi | 0 |
| Jun 29, 2014 | EF2 | 80 km | 29.1 mi | 0 |
| Sep 4, 2012 | EF2 | 84 km | 0.7 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: BIG BURN (3,154 acres, 1987).
| Year | Name | Acres Burned | Distance |
| 1987 | BIG BURN | 3,154 | 79 km |
| 2024 | 2024 DOD HARDWOOD RANGE RX | 2,717 | 90 km |
| 1994 | BIG BURN | 2,248 | 79 km |
| 2023 | 2023 RX | 1,992 | 90 km |
| 1997 | BIG BURN | 1,642 | 79 km |
| 2004 | POOL ONE NORTH | 1,576 | 73 km |
| 1998 | UNNAMED | 1,297 | 79 km |
| 2021 | 2021 DOD HARDWOOD RANGE RX | 987 | 89 km |
| 2007 | UNNAMED | 981 | 71 km |
| 2003 | UNNAMED | 901 | 77 km |
| 1998 | PR 17 | 896 | 73 km |
| 2007 | UNNAMED | 875 | 74 km |
| 2009 | UNNAMED | 867 | 71 km |
| 2007 | PR 16 | 778 | 78 km |
| 2006 | PR 17 RX FIRE | 701 | 80 km |
| 2018 | 2018 BADGER RX BURNS | 659 | 95 km |
| 2005 | UNNAMED | 657 | 73 km |
| 2003 | PR 17 | 632 | 79 km |
| 2019 | 2019 BADGER RX BURNS | 627 | 95 km |
| 2009 | UNNAMED | 589 | 75 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 15°F (-10°C) | 0.9 in | Coldest |
| February | 19°F (-7°C) | 0.8 in | Driest |
| March | 31°F (-0°C) | 1.7 in | |
| April | 45°F (7°C) | 3.4 in | |
| May | 57°F (14°C) | 3.6 in | |
| June | 66°F (19°C) | 4.0 in | |
| July | 69°F (21°C) | 4.3 in | Warmest, Wettest |
| August | 69°F (20°C) | 4.3 in | |
| September | 60°F (16°C) | 3.8 in | |
| October | 49°F (9°C) | 2.3 in | |
| November | 34°F (1°C) | 2.1 in | |
| December | 20°F (-7°C) | 1.2 in |
Westby has a seasonal temperature swing of 55°F / from 15°F in January to 69°F in July. Total annual precipitation is 32.4 inches, with July being the wettest month (4.3") and February the driest (0.8").