Fond du Lac, Wisconsin: natural disaster risk
How exposed Fond du Lac is to floods, storms and other hazards, from FEMA and NOAA records for Fond du Lac County.
Fond du Lac is a city of 44,494 people in Fond du Lac County, Wisconsin. FEMA's National Risk Index rates Fond du Lac County relatively low for natural hazards overall, lower than most of the US. The costliest hazards there are inland flooding, cold wave and tornado, with about $44.1 million in expected losses a year across the county. The weather service has logged 455 storm reports in the county since 1954, including 57 tornadoes and 25 floods. About 1.1% of homes in the county carry federal flood insurance.
Risk figures are for Fond du Lac County. FEMA National Risk Index December 2025; NOAA Storm Events; US Census Bureau ACS 2020 to 2024. Updated November 6, 2026.
Top risks in Fond du Lac
Full Fond du Lac County report ›- Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
- Price a flood policy now. Most new federal policies take 30 days to start.
- Insulate pipes in outside walls, crawl spaces and garages.
- Know how to shut off the main water valve.
- Pick a shelter spot: a basement, or an inside room on the lowest floor with no windows.
- Turn on emergency alerts on your phone and keep a weather radio.
All hazards
| Hazard | Rating | A year |
|---|---|---|
| Inland flooding | $19M | |
| Cold wave | $10M | |
| Tornado | $8M | |
| Hail | $3M | |
| Strong wind | $2M | |
| Heat wave | $1M | |
| Lightning | $449K | |
| Winter weather | $150K | |
| Earthquake | $138K | |
| Wildfire | $61K | |
| Ice storm | $38K | |
| Drought | $11K |
Homes in Fond du Lac
Older homes and mobile homes usually take more damage in storms, floods and earthquakes. Ask about roof age, flood history and retrofits before you buy or rent.
Strongest tornadoes in Fond du Lac County
Common questions about Fond du Lac
Is Fond du Lac safe from natural disasters?
Fond du Lac is in Fond du Lac County, which FEMA's National Risk Index rates relatively low overall, lower than most of the US. The biggest hazards are inland flooding, cold wave, tornado. No place is free of risk, so check the flood map and insurance for any home you consider.
What natural disasters happen in Fond du Lac?
By expected yearly losses in Fond du Lac County, the top hazards are inland flooding (Moderate), cold wave (High), tornado (Moderate). Fond du Lac County has been part of 10 federal disaster or emergency declarations for natural events.
Does Fond du Lac get tornadoes?
Yes. NOAA records list 57 tornadoes in Fond du Lac County since 1950; the strongest was an F5 tornado on July 18, 1996 near Oakfield. FEMA rates tornado risk in the county moderate.
Do I need flood insurance in Fond du Lac?
Standard home insurance does not cover floods. In Fond du Lac County, about 1.1% of homes have federal flood insurance, and FEMA rates inland flooding risk moderate. Check the FEMA flood map for your address and get a quote even outside a high-risk zone.