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Weather & Climate in Winona, MN
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Winona experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 19°F in January while summers reach 75°F in July. The area gets 258 sunny days per year, above the national average. Air quality is rated Good with a median AQI of 20 / among the cleanest air in the country. 93% of days have good air quality. The city sits at an elevation of 662 feet.
Temperature
19°F Jan (-7°C)
75°F Jul (24°C)
| Annual Average | 48.8°F |
| 10% below US avg | |
| January Average | 19°F (-7°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 258 days/yr |
Geography
| Elevation | 662 ft (202 m) |
| Area | 24.1 sq mi (62.5 km²) |
| Population Density | 1,370/sq mi |
| Coordinates | 44.0513°N, 91.6681°W |
| Timezone | America/Chicago |
| County | Trempealeau County County |
| Nearest Airport | La Crosse Regional (LSE) 24 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 20.0 |
| Rating | Good |
| Good Days % | 93.4% |
| Unhealthy Days | 0 |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 58.7 / 100 |
| Social Vulnerability | 40.7 / 100 |
| Community Resilience | 70.2 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | No Rating |
| 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 Moderate |
| 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
347 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 13 fatalities, 240 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Sep 16, 1962 | EF4 | 63 km | 0.5 mi | 0 |
| Jun 4, 1958 | EF4 | 99 km | 11.1 mi | 3 |
| Jun 4, 1958 | EF4 | 86 km | 59.2 mi | 4 |
| May 10, 1953 | EF4 | 89 km | 162.0 mi | 2 |
| Sep 24, 2019 | EF3 | 91 km | 7.0 mi | 0 |
| May 15, 1998 | EF3 | 59 km | 8.0 mi | 0 |
| Aug 27, 1994 | EF3 | 69 km | 10.0 mi | 2 |
| Jul 19, 1994 | EF3 | 96 km | 23.0 mi | 0 |
| Jul 15, 1980 | EF3 | 87 km | 1.0 mi | 1 |
| Jun 5, 1980 | EF3 | 56 km | 26.9 mi | 0 |
| May 5, 1965 | EF3 | 68 km | 65.2 mi | 0 |
| May 26, 1959 | EF3 | 21 km | 34.3 mi | 0 |
| Sep 12, 1951 | EF3 | 72 km | 24.4 mi | 0 |
| Jun 15, 2022 | EF2 | 94 km | 22.9 mi | 0 |
| Apr 12, 2022 | EF2 | 98 km | 3.9 mi | 0 |
| Dec 15, 2021 | EF2 | 89 km | 2.8 mi | 0 |
| Dec 15, 2021 | EF2 | 85 km | 3.1 mi | 0 |
| May 22, 2011 | EF2 | 38 km | 13.8 mi | 0 |
| May 22, 2011 | EF2 | 97 km | 28.7 mi | 0 |
| May 22, 2011 | EF2 | 88 km | 64.5 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
2 wildfires (100+ acres) recorded within 100 km. Largest: BEAVER CUTOFF (982 acres, 2007).
| Year | Name | Acres Burned | Distance |
| 2007 | BEAVER CUTOFF | 982 | 28 km |
| 2024 | RX-UPPER SEVENTEEN | 520 | 91 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 19°F (-7°C) | 0.9 in | Coldest |
| February | 20°F (-7°C) | 0.8 in | Driest |
| March | 32°F (0°C) | 1.9 in | |
| April | 46°F (8°C) | 3.0 in | |
| May | 58°F (15°C) | 3.8 in | |
| June | 67°F (20°C) | 3.9 in | |
| July | 75°F (24°C) | 4.3 in | Warmest, Wettest |
| August | 70°F (21°C) | 4.0 in | |
| September | 61°F (16°C) | 4.0 in | |
| October | 49°F (10°C) | 2.4 in | |
| November | 34°F (1°C) | 1.8 in | |
| December | 20°F (-7°C) | 1.2 in |
Winona has a seasonal temperature swing of 56°F / from 19°F in January to 75°F in July. Total annual precipitation is 32.1 inches, with July being the wettest month (4.3") and February the driest (0.8").