Weather & Climate in Oronoco, MN
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Oronoco has a cool climate with an average annual temperature of 43°F (6°C). Winters average 13°F in January while summers reach 70°F in July. Annual precipitation totals 36.0 inches. The area receives 44.4 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 951 feet.
Temperature
13°F Jan (-11°C)
70°F Jul (21°C)
| Annual Average | 43.3°F |
| 20% below US avg | |
| January Average | 13°F (-11°C) |
| July Average | 70°F (21°C) |
Geography
| Elevation | 951 ft (290 m) |
| Area | 2.8 sq mi (7.3 km²) |
| Population Density | 568/sq mi |
| Coordinates | 44.1584°N, 92.5392°W |
| Timezone | America/Chicago |
| County | Wabasha County County |
| Nearest Airport | Rochester International (RST) 17 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 45.6 / 100 |
| Social Vulnerability | 18.1 / 100 |
| Community Resilience | 89.9 / 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 | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| 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: M2.8.
| Apr 25, 2017 | Near Mankato, Minnesota | M2.8 | 117 km | 0 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
510 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 49 fatalities, 450 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jun 4, 1958 | EF5 | 84 km | 33.7 mi | 21 |
| Apr 30, 1967 | EF4 | 94 km | 7.6 mi | 0 |
| Apr 30, 1967 | EF4 | 88 km | 20.1 mi | 6 |
| Apr 30, 1967 | EF4 | 97 km | 38.7 mi | 5 |
| Sep 16, 1962 | EF4 | 22 km | 0.5 mi | 0 |
| May 10, 1953 | EF4 | 80 km | 162.0 mi | 2 |
| Jun 17, 2010 | EF3 | 72 km | 5.0 mi | 0 |
| Jun 17, 2010 | EF3 | 58 km | 4.3 mi | 0 |
| Jun 17, 2010 | EF3 | 87 km | 18.2 mi | 0 |
| Jun 11, 2004 | EF3 | 84 km | 12.0 mi | 0 |
| May 15, 1998 | EF3 | 73 km | 8.0 mi | 0 |
| Jul 19, 1994 | EF3 | 98 km | 23.0 mi | 0 |
| Jul 27, 1987 | EF3 | 48 km | 30.0 mi | 0 |
| Jun 7, 1984 | EF3 | 85 km | 14.0 mi | 0 |
| May 17, 1982 | EF3 | 88 km | 46.0 mi | 0 |
| Jun 14, 1981 | EF3 | 94 km | 16.2 mi | 1 |
| Apr 30, 1967 | EF3 | 100 km | 18.4 mi | 2 |
| May 5, 1965 | EF3 | 84 km | 65.2 mi | 0 |
| May 26, 1959 | EF3 | 91 km | 34.3 mi | 0 |
| Sep 12, 1951 | EF3 | 64 km | 24.4 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
5 wildfires (100+ acres) recorded within 100 km. Largest: SNAKE TRAIL (1,496 acres, 2024).
| Year | Name | Acres Burned | Distance |
| 2024 | SNAKE TRAIL | 1,496 | 72 km |
| 2007 | BEAVER CUTOFF | 982 | 44 km |
| 2004 | EAGAN | 925 | 92 km |
| 1990 | UNNAMED | 598 | 73 km |
| 1990 | UNNAMED | 513 | 92 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 13°F (-11°C) | 1.0 in | Coldest, Driest |
| February | 17°F (-8°C) | 1.1 in | |
| March | 30°F (-1°C) | 2.1 in | |
| April | 43°F (6°C) | 3.6 in | |
| May | 56°F (13°C) | 4.3 in | |
| June | 66°F (19°C) | 5.3 in | Wettest |
| July | 70°F (21°C) | 4.6 in | Warmest |
| August | 67°F (20°C) | 4.8 in | |
| September | 59°F (15°C) | 3.5 in | |
| October | 46°F (8°C) | 2.4 in | |
| November | 32°F (0°C) | 1.9 in | |
| December | 20°F (-7°C) | 1.3 in |
Oronoco has a seasonal temperature swing of 57°F / from 13°F in January to 70°F in July. Total annual precipitation is 36.0 inches, with June being the wettest month (5.3") and January the driest (1.0").