Rockville, MD (ZIP 20850) has experienced 100 recorded natural disaster events based on federal and state agency records. These include 53 hailstorms, 12 severe wind events, and 11 floods. Total documented property damage amounts to $42.2M. These events have resulted in 12 recorded deaths and 55 injuries.
Hailstorms represent the most common natural hazard in this area, accounting for 53% of all recorded events (53 total). Hail-related events have caused a combined $21K in documented property damage. The most recent recorded hailstorm occurred on Apr 15, 2024.
There have been 12 recorded severe wind events in this area, representing 12% of all disaster events. Wind-related events have caused a combined $11.8M in documented property damage. The most recent recorded severe wind event occurred on May 16, 2025.
There have been 11 recorded floods in this area, representing 11% of all disaster events. Of these, 6 (55%) 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 $21.6M in documented property damage. 2 fatalities have been attributed to floods in this area. The most recent recorded flood occurred on Sep 1, 2021.
Rockville has experienced 8 extreme heat events on record. Of these, 5 (63%) 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). 7 fatalities have been attributed to extreme heat events in this area. The most recent recorded extreme heat event occurred on Jun 24, 2010.
Rockville has experienced 7 blizzards on record. Of these, 2 (29%) 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 $2.9M in documented property damage. 2 fatalities have been attributed to blizzards in this area. The most recent recorded blizzard occurred on Feb 5, 2010.
Rockville has experienced 6 tornadoes on record. Tornado-related events have caused a combined $5.8M in documented property damage. The most recent recorded tornado occurred on Jun 5, 2024.
The most significant disaster event on record for Rockville was Flood on Jan 19, 1996, which caused $20M in property damage. Another major event was 85 mph Thunderstorm Wind (Jul 29, 2023), causing $10M in damages. EF1 Tornado on Jun 5, 2024 also caused significant damage ($5M).
Explore disaster history for adjacent areas
Based on federal and state records, ZIP code 20850 has experienced 100 natural disaster events. The hazard types affecting this area include hailstorms (53 events), severe wind events (12 events), floods (11 events), extreme heat events (8 events), blizzards (7 events), tornadoes (6 events), and extreme cold events (3 events). The primary hazard is hailstorms, which account for 53% of all recorded events.
Hailstorms are the most frequently recorded hazard in Rockville, MD, with 53 events documented. These events have caused a combined $21K in property damage.
Yes, Rockville (ZIP 20850) has 11 recorded flood events. These floods have caused $21.6M in total property damage. The most recent flood on record occurred on Sep 1, 2021.
Rockville has 6 recorded tornado events in the historical record. Total property damage from tornadoes in this area is $5.8M. The most recent tornado was recorded on Jun 5, 2024.
The most damaging natural disaster on record for ZIP code 20850 was Flood, which occurred on Jan 19, 1996. This event caused $20M in documented property damage. It was rated at severity level 5/5.
Natural disasters have caused a documented total of $42.2M in property damage in the Rockville, MD area (ZIP 20850). 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 →