ZIP code 53561, covering Merrimac, WI, has 95 natural disaster events in the historical record. These include 33 floods, 32 hailstorms, and 13 tornadoes. Total documented property damage amounts to $581.2M. These events have resulted in 7 recorded deaths and 57 injuries.
Floods represent the most common natural hazard in this area, accounting for 35% of all recorded events (33 total). Of these, 13 (39%) 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 $71.2M in documented property damage. The most recent recorded flood occurred on Jun 22, 2024.
There have been 32 recorded hailstorms in this area, representing 34% of all disaster events. Hail-related events have caused a combined $501.7M in documented property damage. The most recent recorded hailstorm occurred on Apr 18, 2025.
There have been 13 recorded tornadoes in this area, representing 14% of all disaster events. Of these, 3 (23%) 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 $7.7M in documented property damage. The most recent recorded tornado occurred on Jul 28, 2021.
Merrimac has experienced 10 blizzards on record. Of these, 3 (30%) 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 $332K in documented property damage. 5 fatalities have been attributed to blizzards in this area. The most recent recorded blizzard occurred on Jan 12, 2024.
Merrimac has experienced 3 extreme cold events on record. One event reached severity level 4 or 5 on the normalized scale. The highest recorded severity for cold-related events here is 5/5 (extreme). Cold-related events have caused a combined $3K in documented property damage. 1 fatality has been attributed to extreme cold events in this area. The most recent recorded extreme cold event occurred on Dec 21, 2008.
Merrimac has experienced 3 severe wind events on record. Wind-related events have caused a combined $210K in documented property damage. The most recent recorded severe wind event occurred on Jul 16, 2023.
The most significant disaster event on record for Merrimac was 1" Hail on Jun 25, 2006, which caused $501.7M in property damage. Another major event was Flash Flood (Jun 8, 2008), causing $55.7M in damages. Flood on Jun 1, 2004 also caused significant damage ($12.1M).
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Based on federal and state records, ZIP code 53561 has experienced 95 natural disaster events. The hazard types affecting this area include floods (33 events), hailstorms (32 events), tornadoes (13 events), blizzards (10 events), extreme cold events (3 events), severe wind events (3 events), and extreme heat event (1 event). The primary hazard is floods, which account for 35% of all recorded events.
Floods are the most frequently recorded hazard in Merrimac, WI, with 33 events documented. These events have caused a combined $71.2M in property damage.
Yes, Merrimac (ZIP 53561) has 33 recorded flood events. These floods have caused $71.2M in total property damage. The most recent flood on record occurred on Jun 22, 2024.
Merrimac 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 $7.7M. The most recent tornado was recorded on Jul 28, 2021.
The most damaging natural disaster on record for ZIP code 53561 was 1" Hail, which occurred on Jun 25, 2006. This event caused $501.7M in documented property damage. It was rated at severity level 2/5.
Natural disasters have caused a documented total of $581.2M in property damage in the Merrimac, WI area (ZIP 53561). 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 →