ZIP code 54650, covering Onalaska, WI, has 152 natural disaster events in the historical record. These include 98 hailstorms, 18 floods, and 13 tornadoes. Total documented property damage amounts to $76.1M. These events have resulted in 7 recorded deaths and 63 injuries.
With 98 recorded incidents (64% of all events), hailstorms are the leading natural hazard for this ZIP code. Of these, 3 (3%) were rated at severity level 4 or 5 — the most intense on the normalized scale. The highest recorded severity for hail-related events here is 5/5 (extreme). Hail-related events have caused a combined $50.2M in documented property damage. The most recent recorded hailstorm occurred on Sep 21, 2024.
There have been 18 recorded floods in this area, representing 12% of all disaster events. Of these, 12 (67%) were rated at severity level 4 or 5 — the most intense on the normalized scale. The highest recorded severity for flood-related events here is 5/5 (extreme). Flood-related events have caused a combined $21.4M in documented property damage. 1 fatality has been attributed to floods in this area. The most recent recorded flood occurred on Jul 1, 2024.
There have been 13 recorded tornadoes in this area, representing 9% of all disaster events. Of these, 2 (15%) were rated at severity level 4 or 5 — the most intense on the normalized scale. The highest recorded severity for tornado-related events here is 4/5 (severe). Tornado-related events have caused a combined $3.5M in documented property damage. The most recent recorded tornado occurred on Jun 25, 2025.
Onalaska has experienced 10 blizzards on record. Of these, 10 (100%) were rated at severity level 4 or 5 — the most intense on the normalized scale. The highest recorded severity for winter storm events here is 5/5 (extreme). Winter storm events have caused a combined $726.6K in documented property damage. 2 fatalities have been attributed to blizzards in this area. The most recent recorded blizzard occurred on Dec 28, 2021.
Onalaska has experienced 9 severe wind events on record. Wind-related events have caused a combined $225K in documented property damage. The most recent recorded severe wind event occurred on May 22, 2011.
Onalaska has experienced 3 extreme heat events on record. Of these, 2 (67%) were rated at severity level 4 or 5 — the most intense on the normalized scale. The highest recorded severity for heat-related events here is 5/5 (extreme). Heat-related events have caused a combined $7K in documented property damage. 3 fatalities have been attributed to extreme heat events in this area. The most recent recorded extreme heat event occurred on Jul 2, 2012.
The most significant disaster event on record for Onalaska was 2.5" Hail on Jun 2, 2020, which caused $45.5M in property damage. Another major event was Flash Flood (Aug 18, 2007), causing $12.1M in damages. Flash Flood on Aug 18, 2007 also caused significant damage ($3.3M).
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Based on federal and state records, ZIP code 54650 has experienced 152 natural disaster events. The hazard types affecting this area include hailstorms (98 events), floods (18 events), tornadoes (13 events), blizzards (10 events), severe wind events (9 events), extreme heat events (3 events), and extreme cold event (1 event). The primary hazard is hailstorms, which account for 64% of all recorded events.
Hailstorms are the most frequently recorded hazard in Onalaska, WI, with 98 events documented. These events have caused a combined $50.2M in property damage.
Yes, Onalaska (ZIP 54650) has 18 recorded flood events. These floods have caused $21.4M in total property damage. The most recent flood on record occurred on Jul 1, 2024.
Onalaska has 13 recorded tornado events in the historical record. The strongest tornado recorded reached severity level 4/5 on the normalized scale. Total property damage from tornadoes in this area is $3.5M. The most recent tornado was recorded on Jun 25, 2025.
The most damaging natural disaster on record for ZIP code 54650 was 2.5" Hail, which occurred on Jun 2, 2020. This event caused $45.5M in documented property damage. It was rated at severity level 3/5.
Natural disasters have caused a documented total of $76.1M in property damage in the Onalaska, WI area (ZIP 54650). This figure is based on historical records from FEMA, NOAA Storm Events Database, and USGS, and covers events from the 1950s through the present. Actual damages may be higher, as not all events have complete damage assessments.
Data sourced from FEMA (disaster declarations, NFIP flood claims), NOAA Storm Events Database, USGS Earthquake Hazards Program, and NIFC wildfire records. Historical coverage varies by source, with most records beginning in the 1950s–1970s. Full methodology →