ZIP code 80534, covering Johnstown, CO, has 130 natural disaster events in the historical record. These include 107 hailstorms, 16 tornadoes, and 6 floods. Total documented property damage amounts to $3.7M. These events have resulted in 2 recorded deaths and 1 injury.
With 107 recorded incidents (82% of all events), hailstorms are the leading natural hazard for this ZIP code. One event reached severity level 4 or 5 on the normalized scale. The highest recorded severity for hail-related events here is 4/5 (severe). Hail-related events have caused a combined $3.5M in documented property damage. The most recent recorded hailstorm occurred on Jun 17, 2025.
There have been 16 recorded tornadoes in this area, representing 12% of all disaster events. Tornado-related events have caused a combined $85K in documented property damage. The most recent recorded tornado occurred on Oct 4, 2004.
Johnstown has experienced 6 floods on record. Of these, 5 (83%) 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 4/5 (severe). Flood-related events have caused a combined $155K in documented property damage. 2 fatalities have been attributed to floods in this area. The most recent recorded flood occurred on Jun 13, 2015.
Johnstown has experienced 1 severe wind event on record. The most recent recorded severe wind event occurred on Jul 23, 1981.
The most significant disaster event on record for Johnstown was 2" Hail on Jul 20, 2009, which caused $3M in property damage. Another major event was 1" Hail (Jul 20, 2024), causing $500K in damages.
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Based on federal and state records, ZIP code 80534 has experienced 130 natural disaster events. The hazard types affecting this area include hailstorms (107 events), tornadoes (16 events), floods (6 events), and severe wind event (1 event). The primary hazard is hailstorms, which account for 82% of all recorded events.
Hailstorms are the most frequently recorded hazard in Johnstown, CO, with 107 events documented. These events have caused a combined $3.5M in property damage.
Yes, Johnstown (ZIP 80534) has 6 recorded flood events. These floods have caused $155K in total property damage. The most recent flood on record occurred on Jun 13, 2015.
Johnstown has 16 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 $85K. The most recent tornado was recorded on Oct 4, 2004.
The most damaging natural disaster on record for ZIP code 80534 was 2" Hail, which occurred on Jul 20, 2009. This event caused $3M in documented property damage. It was rated at severity level 3/5.
Natural disasters have caused a documented total of $3.7M in property damage in the Johnstown, CO area (ZIP 80534). 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 →