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Weather & Climate in Oostburg, WI
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Oostburg experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 19°F in January while summers reach 71°F in July. The area gets 260 sunny days per year, above the national average. Annual precipitation totals 34.6 inches. The area receives 48.6 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 711 feet.
Temperature
19°F Jan (-7°C)
71°F Jul (21°C)
| Annual Average | 45.9°F |
| 15% below US avg | |
| January Average | 19°F (-7°C) |
| July Average | 71°F (21°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 711 ft (217 m) |
| Area | 2.0 sq mi (5.1 km²) |
| Population Density | 1,516/sq mi |
| Coordinates | 43.6241°N, 87.7881°W |
| Timezone | America/Chicago |
| County | Sheboygan County County |
| Nearest Airport | General Mitchell International (MKE) 47 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 38.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 70.2 / 100 |
| Social Vulnerability | 15.9 / 100 |
| Community Resilience | 99.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | No Rating |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
| Coastal Flood | Very 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: M2.9.
| Aug 2, 2024 | 38 km ESE of Sturgeon Bay, Wisconsin | M2.9 | 136 km | 11 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
308 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 10 fatalities, 430 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jul 18, 1996 | EF5 | 67 km | 13.3 mi | 0 |
| Jul 5, 1994 | EF4 | 73 km | 3.5 mi | 0 |
| Apr 27, 1984 | EF4 | 92 km | 27.5 mi | 1 |
| Apr 27, 1984 | EF4 | 86 km | 6.5 mi | 1 |
| Apr 4, 1981 | EF4 | 40 km | 1.8 mi | 3 |
| Apr 21, 1974 | EF4 | 85 km | 26.0 mi | 0 |
| Aug 22, 1964 | EF4 | 29 km | 2.2 mi | 0 |
| Jun 23, 2004 | EF3 | 94 km | 7.6 mi | 1 |
| Jun 5, 1980 | EF3 | 97 km | 10.7 mi | 0 |
| Apr 7, 1980 | EF3 | 97 km | 1.2 mi | 0 |
| Jun 5, 1977 | EF3 | 79 km | 69.5 mi | 0 |
| Apr 21, 1974 | EF3 | 79 km | 58.6 mi | 2 |
| Apr 21, 1974 | EF3 | 78 km | 22.2 mi | 0 |
| Aug 28, 2018 | EF2 | 59 km | 3.9 mi | 0 |
| Apr 10, 2011 | EF2 | 81 km | 1.5 mi | 0 |
| Jul 22, 2010 | EF2 | 91 km | 1.0 mi | 0 |
| Jun 1, 2000 | EF2 | 72 km | 17.0 mi | 0 |
| Jul 18, 1996 | EF2 | 53 km | 6.4 mi | 1 |
| Jul 5, 1994 | EF2 | 75 km | 1.0 mi | 0 |
| Jun 2, 1990 | EF2 | 56 km | 1.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
6 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (1,524 acres, 2006).
| Year | Name | Acres Burned | Distance |
| 2006 | UNNAMED | 1,524 | 68 km |
| 2010 | RX BURN | 1,236 | 68 km |
| 1994 | SOMMERS | 938 | 72 km |
| 1988 | PEACHY RD | 812 | 72 km |
| 2006 | UNNAMED | 612 | 73 km |
| 2007 | TOWER RD 2 | 592 | 72 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 19°F (-7°C) | 1.4 in | Coldest |
| February | 26°F (-4°C) | 1.1 in | Driest |
| March | 33°F (0°C) | 2.0 in | |
| April | 43°F (6°C) | 3.1 in | |
| May | 53°F (12°C) | 2.8 in | |
| June | 63°F (17°C) | 3.1 in | |
| July | 71°F (21°C) | 3.3 in | Warmest |
| August | 69°F (20°C) | 3.8 in | |
| September | 61°F (16°C) | 3.8 in | Wettest |
| October | 50°F (10°C) | 2.5 in | |
| November | 38°F (4°C) | 2.4 in | |
| December | 27°F (-3°C) | 2.0 in |
Oostburg has a seasonal temperature swing of 51°F / from 19°F in January to 71°F in July. Total annual precipitation is 31.2 inches, with September being the wettest month (3.8") and February the driest (1.1").