ZIP code 80303, covering Boulder, CO, has 143 natural disaster events in the historical record. These include 133 hailstorms, 4 tornadoes, and 3 floods. Total documented property damage amounts to $297.9M. A total of 3 injuries have been reported across all events.
The dominant hazard type for Boulder is hailstorms, with 133 recorded events making up 93% of the area's disaster history. 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). The most recent recorded hailstorm occurred on Aug 10, 2025.
Boulder has experienced 4 tornadoes on record. Tornado-related events have caused a combined $27.5K in documented property damage. The most recent recorded tornado occurred on Jun 6, 1997.
Boulder has experienced 3 floods 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 flood-related events here is 5/5 (extreme). Flood-related events have caused a combined $297.9M in documented property damage. The most recent recorded flood occurred on Jul 30, 2021.
Boulder has experienced 2 wildfires on record. The most recent recorded wildfire occurred on May 4, 2017.
Boulder has experienced 1 severe wind event on record. The most recent recorded severe wind event occurred on Mar 30, 2014.
The most significant disaster event on record for Boulder was Flood on Sep 12, 2013, which caused $297.3M in property damage. Another major event was Flood (May 8, 2015), causing $600K in damages.
Explore disaster history for adjacent areas
Based on federal and state records, ZIP code 80303 has experienced 143 natural disaster events. The hazard types affecting this area include hailstorms (133 events), tornadoes (4 events), floods (3 events), wildfires (2 events), and severe wind event (1 event). The primary hazard is hailstorms, which account for 93% of all recorded events.
Hailstorms are the most frequently recorded hazard in Boulder, CO, with 133 events documented.
Yes, Boulder (ZIP 80303) has 3 recorded flood events. These floods have caused $297.9M in total property damage. The most recent flood on record occurred on Jul 30, 2021.
Boulder has 4 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 $27.5K. The most recent tornado was recorded on Jun 6, 1997.
The most damaging natural disaster on record for ZIP code 80303 was Flood, which occurred on Sep 12, 2013. This event caused $297.3M in documented property damage. It was rated at severity level 5/5.
Natural disasters have caused a documented total of $297.9M in property damage in the Boulder, CO area (ZIP 80303). 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 →