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Weather & Climate in Ronneby, MN
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Ronneby has a cool climate with an average annual temperature of 42°F (5°C). Winters average 11°F in January while summers reach 69°F in July. The area gets 270 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 30.8 inches. The area receives 48.9 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 36. The city sits at an elevation of 1,116 feet.
Temperature
11°F Jan (-12°C)
69°F Jul (21°C)
| Annual Average | 41.8°F |
| 23% below US avg | |
| January Average | 11°F (-12°C) |
| July Average | 69°F (21°C) |
| Sunny Days | 270 days/yr |
Geography
| Elevation | 1,116 ft (340 m) |
| Area | 1.0 sq mi (2.5 km²) |
| Population Density | 65/sq mi |
| Coordinates | 45.6853°N, 93.8601°W |
| Timezone | America/Chicago |
| County | Sherburne County County |
| Nearest Airport | St Cloud Regional (STC) 14 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 53.6 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 95.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
2 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.1.
| Feb 9, 1994 | 6 km NNE of Blomkest, Minnesota | M3.1 | 117 km | 5 km |
| Apr 29, 2011 | Minnesota | M2.5 | 134 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
347 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 28 fatalities, 661 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jul 3, 1983 | EF4 | 67 km | 1.0 mi | 0 |
| May 6, 1965 | EF4 | 86 km | 6.8 mi | 3 |
| May 6, 1965 | EF4 | 96 km | 6.9 mi | 0 |
| May 6, 1965 | EF4 | 87 km | 17.3 mi | 6 |
| May 21, 1957 | EF4 | 78 km | 9.2 mi | 0 |
| Jun 19, 1951 | EF4 | 98 km | 52.6 mi | 1 |
| May 25, 2008 | EF3 | 85 km | 6.0 mi | 1 |
| Jun 18, 2001 | EF3 | 95 km | 34.0 mi | 2 |
| Sep 18, 1997 | EF3 | 45 km | 17.0 mi | 1 |
| Jul 1, 1997 | EF3 | 64 km | 5.0 mi | 0 |
| Jun 16, 1992 | EF3 | 79 km | 10.0 mi | 0 |
| Jul 5, 1991 | EF3 | 95 km | 6.0 mi | 0 |
| Jul 23, 1987 | EF3 | 67 km | 5.0 mi | 0 |
| Apr 26, 1984 | EF3 | 89 km | 5.5 mi | 1 |
| Sep 3, 1980 | EF3 | 33 km | 3.8 mi | 1 |
| Aug 26, 1977 | EF3 | 89 km | 26.3 mi | 0 |
| Jun 25, 1973 | EF3 | 81 km | 10.0 mi | 0 |
| Jun 30, 1968 | EF3 | 84 km | 0.1 mi | 0 |
| May 5, 1964 | EF3 | 73 km | 4.3 mi | 0 |
| May 24, 1958 | EF3 | 93 km | 59.4 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (9,055 acres, 2007).
| Year | Name | Acres Burned | Distance |
| 2007 | UNNAMED | 9,055 | 74 km |
| 2009 | CENTER TANK RANGE | 6,131 | 72 km |
| 2002 | UNIT 4 | 5,887 | 21 km |
| 2003 | UNITS 37 38 39 A | 4,879 | 27 km |
| 1998 | UNITS 1617 | 4,649 | 22 km |
| 1988 | UNNAMED | 4,475 | 72 km |
| 2005 | RX HFR 05 | 4,253 | 23 km |
| 2009 | BU9 | 4,112 | 20 km |
| 2007 | WUI 07 - UNIT 36 | 4,025 | 29 km |
| 1988 | UNNAMED | 3,642 | 59 km |
| 2000 | UNIT 25 | 3,412 | 28 km |
| 2009 | BU11 | 3,242 | 24 km |
| 1997 | BIG | 2,987 | 26 km |
| 2009 | UNNAMED | 2,904 | 75 km |
| 2009 | HENDRICKSON IMPACT AREA | 2,757 | 76 km |
| 2003 | UNITS 34 33 W | 2,637 | 28 km |
| 2024 | UNIT 8E RX | 2,551 | 22 km |
| 1992 | SHARPTAIL | 2,288 | 28 km |
| 1988 | UNNAMED | 2,243 | 19 km |
| 2010 | WUI 10 UNIT D | 2,042 | 29 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 11°F (-12°C) | 0.8 in | Coldest |
| February | 16°F (-9°C) | 0.6 in | Driest |
| March | 28°F (-2°C) | 1.5 in | |
| April | 44°F (6°C) | 2.2 in | |
| May | 57°F (14°C) | 3.2 in | |
| June | 65°F (18°C) | 4.5 in | Wettest |
| July | 69°F (21°C) | 3.6 in | Warmest |
| August | 67°F (20°C) | 3.8 in | |
| September | 58°F (14°C) | 3.2 in | |
| October | 46°F (8°C) | 2.4 in | |
| November | 29°F (-2°C) | 1.5 in | |
| December | 15°F (-10°C) | 0.9 in |
Ronneby has a seasonal temperature swing of 59°F / from 11°F in January to 69°F in July. Total annual precipitation is 28.0 inches, with June being the wettest month (4.5") and February the driest (0.6").