Byron, MN (ZIP 55920) sits in one of the more disaster-active areas in the region, with 221 natural disaster events on record. These include 143 hailstorms, 33 blizzards, and 15 floods. Total documented property damage amounts to $54.5M. These events have resulted in 14 recorded deaths and 82 injuries.
With 143 recorded incidents (65% of all events), hailstorms are the leading natural hazard for this ZIP code. Hail-related events have caused a combined $5.8M in documented property damage. The most recent recorded hailstorm occurred on Aug 27, 2025.
There have been 33 recorded blizzards in this area, representing 15% of all disaster events. Of these, 16 (48%) 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 $1.3M in documented property damage. 7 fatalities have been attributed to blizzards in this area. The most recent recorded blizzard occurred on Nov 28, 2025.
There have been 15 recorded floods in this area, representing 7% of all disaster events. Of these, 12 (80%) 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 $43.4M in documented property damage. The most recent recorded flood occurred on Jul 20, 2019.
There have been 15 recorded severe wind events in this area, representing 7% of all disaster events. Wind-related events have caused a combined $1.5M in documented property damage. The most recent recorded severe wind event occurred on Jul 28, 2025.
Byron has experienced 6 tornadoes on record. Tornado-related events have caused a combined $2.5M in documented property damage. The most recent recorded tornado occurred on Jun 4, 2019.
Byron has experienced 5 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 $55K in documented property damage. 5 fatalities have been attributed to extreme cold events in this area. The most recent recorded extreme cold event occurred on Jan 24, 2024.
The most significant disaster event on record for Byron was Flash Flood on Aug 18, 2007, which caused $35.1M in property damage. Another major event was Flash Flood (Sep 24, 2010), causing $7M in damages. EF1 Tornado on Jun 17, 2010 also caused significant damage ($1.9M).
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Based on federal and state records, ZIP code 55920 has experienced 221 natural disaster events. The hazard types affecting this area include hailstorms (143 events), blizzards (33 events), floods (15 events), severe wind events (15 events), tornadoes (6 events), extreme cold events (5 events), and extreme heat events (4 events). The primary hazard is hailstorms, which account for 65% of all recorded events.
Hailstorms are the most frequently recorded hazard in Byron, MN, with 143 events documented. These events have caused a combined $5.8M in property damage.
Yes, Byron (ZIP 55920) has 15 recorded flood events. These floods have caused $43.4M in total property damage. The most recent flood on record occurred on Jul 20, 2019.
Byron has 6 recorded tornado events in the historical record. The strongest tornado recorded reached severity level 3/5 on the normalized scale. Total property damage from tornadoes in this area is $2.5M. The most recent tornado was recorded on Jun 4, 2019.
The most damaging natural disaster on record for ZIP code 55920 was Flash Flood, which occurred on Aug 18, 2007. This event caused $35.1M in documented property damage. It was rated at severity level 5/5.
Natural disasters have caused a documented total of $54.5M in property damage in the Byron, MN area (ZIP 55920). 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 →