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Weather & Climate in Clarks Mills, WI
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Clarks Mills has a cool climate with an average annual temperature of 45°F (7°C). Winters average 20°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 31.5 inches. The area receives 34.6 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 38. The city sits at an elevation of 832 feet.
Temperature
20°F Jan (-7°C)
69°F Jul (20°C)
| Annual Average | 45.1°F |
| 16% below US avg | |
| January Average | 20°F (-7°C) |
| July Average | 69°F (20°C) |
| Sunny Days | 270 days/yr |
Geography
| Elevation | 832 ft (254 m) |
| Area | 0.3 sq mi (0.6 km²) |
| Population Density | 344/sq mi |
| Coordinates | 44.0911°N, 87.8626°W |
| Timezone | America/Chicago |
| County | Manitowoc County County |
| Nearest Airport | Green Bay/Austin Straubel International (GRB) 30 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 38.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 68.9 / 100 |
| Social Vulnerability | 23.0 / 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 High |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively 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 | 98 km | 11 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
296 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 16 fatalities, 273 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jul 18, 1996 | EF5 | 75 km | 13.3 mi | 0 |
| Jul 5, 1994 | EF4 | 21 km | 3.5 mi | 0 |
| Apr 27, 1984 | EF4 | 71 km | 27.5 mi | 1 |
| Apr 4, 1981 | EF4 | 78 km | 1.8 mi | 3 |
| Apr 21, 1974 | EF4 | 86 km | 26.0 mi | 0 |
| Aug 22, 1964 | EF4 | 79 km | 2.2 mi | 0 |
| Apr 3, 1956 | EF4 | 90 km | 11.5 mi | 7 |
| Jun 23, 2004 | EF3 | 99 km | 7.6 mi | 1 |
| Apr 27, 1984 | EF3 | 97 km | 32.0 mi | 0 |
| Jun 5, 1977 | EF3 | 76 km | 69.5 mi | 0 |
| Apr 21, 1974 | EF3 | 93 km | 22.2 mi | 0 |
| Apr 21, 1974 | EF3 | 97 km | 58.6 mi | 2 |
| Dec 1, 1970 | EF3 | 68 km | 13.1 mi | 0 |
| Jun 26, 1969 | EF3 | 62 km | 15.3 mi | 0 |
| Jun 25, 1950 | EF3 | 88 km | 0.1 mi | 0 |
| Aug 28, 2018 | EF2 | 75 km | 3.9 mi | 0 |
| Aug 6, 2013 | EF2 | 80 km | 13.1 mi | 0 |
| Apr 10, 2011 | EF2 | 39 km | 1.5 mi | 0 |
| Jun 1, 2000 | EF2 | 99 km | 17.0 mi | 0 |
| Jul 18, 1996 | EF2 | 36 km | 6.4 mi | 1 |
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 | 88 km |
| 2010 | RX BURN | 1,236 | 87 km |
| 1994 | SOMMERS | 938 | 88 km |
| 1988 | PEACHY RD | 812 | 90 km |
| 2006 | UNNAMED | 612 | 87 km |
| 2007 | TOWER RD 2 | 592 | 90 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 20°F (-7°C) | 1.3 in | Coldest |
| February | 21°F (-6°C) | 1.1 in | Driest |
| March | 31°F (-0°C) | 1.9 in | |
| April | 43°F (6°C) | 2.8 in | |
| May | 55°F (13°C) | 3.0 in | |
| June | 64°F (18°C) | 3.5 in | |
| July | 69°F (20°C) | 3.4 in | Warmest |
| August | 68°F (20°C) | 3.7 in | Wettest |
| September | 60°F (15°C) | 3.6 in | |
| October | 49°F (9°C) | 2.5 in | |
| November | 35°F (2°C) | 2.3 in | |
| December | 23°F (-5°C) | 1.6 in |
Clarks Mills has a seasonal temperature swing of 49°F / from 20°F in January to 69°F in July. Total annual precipitation is 30.5 inches, with August being the wettest month (3.7") and February the driest (1.1").