Sign In Register

Weather & Climate in Fond du Lac, WI

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Fond du Lac experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 19°F in January while summers reach 73°F in July. The area gets 260 sunny days per year, above the national average. Annual precipitation totals 32.4 inches. Air quality is rated Good with a median AQI of 38. 93% of days have good air quality. The city sits at an elevation of 768 feet.

Temperature

19°F Jan (-7°C) 73°F Jul (23°C)
Annual Average47.0°F
13% below US avg
January Average19°F (-7°C)
July Average73°F (23°C)
Sunny Days260 days/yr

Geography

Elevation768 ft (234 m)
Area20.1 sq mi (52.1 km²)
Population Density2,312/sq mi
Coordinates43.7722°N, 88.4403°W
TimezoneAmerica/Chicago
CountyFond du Lac County County
Nearest AirportWittman Regional (OSH)
18 miles away

Precipitation & Snow

Annual Rainfall 32.4"
15% below US avg
Wettest Month (Aug) 3.94"
Driest Month (Feb) 0.98"

Air Quality

AQI Median38.0
RatingGood
Good Days %92.7%
Unhealthy Days0

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score76.3 / 100
Social Vulnerability16.6 / 100
Community Resilience94.2 / 100

Hazard Breakdown

Tornado Relatively Moderate
Hurricane Very Low
Earthquake Very Low
Wildfire Very Low
Flood Relatively Moderate
Hail Relatively Moderate
Strong Wind Relatively High
Heat Wave Relatively Low
Winter Weather Relatively Moderate
Lightning Relatively Moderate
Ice Storm Relatively Low
Drought Very Low
Cold Wave Relatively High
Landslide Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Tornado History

480 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 28 fatalities, 557 injuries.

Date Rating Distance Path Fatalities
Jul 18, 1996 EF5 17 km 13.3 mi 0
Jul 5, 1994 EF4 75 km 3.5 mi 0
Apr 27, 1984 EF4 88 km 6.5 mi 1
Apr 27, 1984 EF4 42 km 27.5 mi 1
Apr 4, 1981 EF4 43 km 1.8 mi 3
Apr 21, 1974 EF4 31 km 26.0 mi 0
Aug 22, 1964 EF4 61 km 2.2 mi 0
Apr 3, 1956 EF4 46 km 11.5 mi 7
Sep 26, 1951 EF4 93 km 26.4 mi 6
Sep 26, 1951 EF4 73 km 9.0 mi 1
Jun 23, 2004 EF3 43 km 7.6 mi 1
Jun 23, 2004 EF3 48 km 33.3 mi 0
Aug 29, 1992 EF3 93 km 28.0 mi 1
Jun 8, 1984 EF3 73 km 29.0 mi 0
Apr 27, 1984 EF3 93 km 32.0 mi 0
Jun 5, 1980 EF3 76 km 10.7 mi 0
Apr 7, 1980 EF3 54 km 1.2 mi 0
Jun 5, 1977 EF3 24 km 69.5 mi 0
Jun 4, 1975 EF3 88 km 2.3 mi 0
Apr 21, 1974 EF3 39 km 58.6 mi 2
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Wildfire History

7 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (1,524 acres, 2006).

Year Name Acres Burned Distance
2006 UNNAMED 1,524 31 km
2010 RX BURN 1,236 31 km
1994 SOMMERS 938 30 km
1988 PEACHY RD 812 32 km
2006 UNNAMED 612 29 km
2007 TOWER RD 2 592 32 km
2024 RX-HWY Y - SOUTH 553 93 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 19°F (-7°C) 1.1 in Coldest
February 21°F (-6°C) 1.0 in Driest
March 32°F (0°C) 1.9 in
April 45°F (7°C) 2.8 in
May 57°F (14°C) 3.0 in
June 66°F (19°C) 3.5 in
July 73°F (23°C) 3.5 in Warmest
August 69°F (21°C) 3.9 in Wettest
September 61°F (16°C) 3.8 in
October 49°F (9°C) 2.5 in
November 35°F (2°C) 2.1 in
December 22°F (-5°C) 1.5 in

Fond du Lac has a seasonal temperature swing of 54°F / from 19°F in January to 73°F in July. Total annual precipitation is 30.6 inches, with August being the wettest month (3.9") and February the driest (1.0").

View full profile of Fond du Lac, WI →