ZIP code 21758, covering Knoxville, MD, has 55 natural disaster events in the historical record. These include 28 hailstorms, 7 floods, and 7 severe wind events. Total documented property damage amounts to $28.1M. A total of 3 injuries have been reported across all events.
With 28 recorded incidents (51% of all events), hailstorms are the leading natural hazard for this ZIP code. Hail-related events have caused a combined $15K in documented property damage. The most recent recorded hailstorm occurred on May 23, 2024.
Knoxville has experienced 7 floods on record. Of these, 5 (71%) 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 $25M in documented property damage. The most recent recorded flood occurred on May 15, 2018.
Knoxville has experienced 7 severe wind events on record. Wind-related events have caused a combined $1.1M in documented property damage. The most recent recorded severe wind event occurred on Feb 16, 2025.
Knoxville has experienced 6 tornadoes on record. Tornado-related events have caused a combined $990K in documented property damage. The most recent recorded tornado occurred on Sep 17, 2004.
Knoxville has experienced 4 blizzards on record. Winter storm events have caused a combined $25K in documented property damage. The most recent recorded blizzard occurred on Feb 5, 2010.
Knoxville has experienced 1 extreme cold event on record. One event reached severity level 4 or 5 on the normalized scale. The highest recorded severity for cold-related events here is 4/5 (severe). Cold-related events have caused a combined $1M in documented property damage. The most recent recorded extreme cold event occurred on Apr 10, 1997.
The most significant disaster event on record for Knoxville was Flood on Jan 19, 1996, which caused $20.1M in property damage. Another major event was Flash Flood (May 15, 2018), causing $4.6M in damages. Frost/Freeze on Apr 10, 1997 also caused significant damage ($1M).
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Based on federal and state records, ZIP code 21758 has experienced 55 natural disaster events. The hazard types affecting this area include hailstorms (28 events), floods (7 events), severe wind events (7 events), tornadoes (6 events), blizzards (4 events), extreme cold event (1 event), earthquake (1 event), and extreme heat event (1 event). The primary hazard is hailstorms, which account for 51% of all recorded events.
Hailstorms are the most frequently recorded hazard in Knoxville, MD, with 28 events documented. These events have caused a combined $15K in property damage.
Yes, Knoxville (ZIP 21758) has 7 recorded flood events. These floods have caused $25M in total property damage. The most recent flood on record occurred on May 15, 2018.
Knoxville 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 $990K. The most recent tornado was recorded on Sep 17, 2004.
The most damaging natural disaster on record for ZIP code 21758 was Flood, which occurred on Jan 19, 1996. This event caused $20.1M in documented property damage. It was rated at severity level 5/5.
Natural disasters have caused a documented total of $28.1M in property damage in the Knoxville, MD area (ZIP 21758). 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 →