Federal records document 54 natural disaster events in the Riverdale, MD area (ZIP 20737). These include 31 hailstorms, 12 severe wind events, and 8 floods. Total documented property damage amounts to $102.4M. These events have resulted in 2 recorded deaths and 58 injuries.
The dominant hazard type for Riverdale is hailstorms, with 31 recorded events making up 57% of the area's disaster history. The most recent recorded hailstorm occurred on Aug 13, 2018.
There have been 12 recorded severe wind events in this area, representing 22% of all disaster events. Wind-related events have caused a combined $1.9M in documented property damage. The most recent recorded severe wind event occurred on Jul 12, 2022.
Riverdale has experienced 8 floods on record. Of these, 4 (50%) 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 $200K in documented property damage. The most recent recorded flood occurred on Sep 10, 2020.
Riverdale has experienced 3 tornadoes on record. One event reached severity level 4 or 5 on the normalized scale. The highest recorded severity for tornado-related events here is 4/5 (severe). Tornado-related events have caused a combined $100.3M in documented property damage. 2 fatalities have been attributed to tornadoes in this area. The most recent recorded tornado occurred on Apr 20, 2008.
The most significant disaster event on record for Riverdale was EF3 Tornado on Sep 24, 2001, which caused $100M in property damage and was linked to 2 fatalities. Another major event was 92 mph Thunderstorm Wind (Jul 12, 2022), causing $1.5M in damages.
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Based on federal and state records, ZIP code 20737 has experienced 54 natural disaster events. The hazard types affecting this area include hailstorms (31 events), severe wind events (12 events), floods (8 events), and tornadoes (3 events). The primary hazard is hailstorms, which account for 57% of all recorded events.
Hailstorms are the most frequently recorded hazard in Riverdale, MD, with 31 events documented.
Yes, Riverdale (ZIP 20737) has 8 recorded flood events. These floods have caused $200K in total property damage. The most recent flood on record occurred on Sep 10, 2020.
Riverdale has 3 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 $100.3M. The most recent tornado was recorded on Apr 20, 2008.
The most damaging natural disaster on record for ZIP code 20737 was EF3 Tornado, which occurred on Sep 24, 2001. This event caused $100M in documented property damage. It resulted in 2 reported fatalities. It was rated at severity level 4/5.
Natural disasters have caused a documented total of $102.4M in property damage in the Riverdale, MD area (ZIP 20737). 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 →