Ballwin, MO (ZIP 63021) sits in one of the more disaster-active areas in the region, with 270 natural disaster events on record. These include 155 hailstorms, 83 extreme heat events, and 11 tornadoes. Total documented property damage amounts to $472.5M. These events have resulted in 53 recorded deaths and 3,270 injuries.
The dominant hazard type for Ballwin is hailstorms, with 155 recorded events making up 57% of the area's disaster history. Of these, 2 (1%) were rated at severity level 4 or 5 — the most intense on the normalized scale. The highest recorded severity for hail-related events here is 4/5 (severe). Hail-related events have caused a combined $400.3M in documented property damage. The most recent recorded hailstorm occurred on May 19, 2025.
Extreme heat events account for 31% of the disaster record here, with 83 events documented. Of these, 74 (89%) 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). 41 fatalities have been attributed to extreme heat events in this area. The most recent recorded extreme heat event occurred on Aug 16, 2025.
There have been 11 recorded tornadoes in this area, representing 4% of all disaster events. Of these, 2 (18%) were rated at severity level 4 or 5 — the most intense on the normalized scale. The highest recorded severity for tornado-related events here is 5/5 (extreme). Tornado-related events have caused a combined $27.8M in documented property damage. 11 fatalities have been attributed to tornadoes in this area. The most recent recorded tornado occurred on Jun 4, 2025.
There have been 11 recorded severe wind events in this area, representing 4% of all disaster events. Wind-related events have caused a combined $170K in documented property damage. The most recent recorded severe wind event occurred on Mar 14, 2025.
Ballwin has experienced 6 floods on record. Of these, 4 (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 $383K in documented property damage. The most recent recorded flood occurred on Apr 5, 2025.
Ballwin has experienced 3 blizzards on record. Of these, 3 (100%) 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 $43.8M in documented property damage. The most recent recorded blizzard occurred on Jan 12, 2007.
The most significant disaster event on record for Ballwin was 2.5" Hail on Apr 10, 2001, which caused $400M in property damage. Another major event was Winter Storm (Nov 30, 2006), causing $40M in damages. EF4 Tornado on Feb 10, 1959 also caused significant damage ($25M).
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Based on federal and state records, ZIP code 63021 has experienced 270 natural disaster events. The hazard types affecting this area include hailstorms (155 events), extreme heat events (83 events), tornadoes (11 events), severe wind events (11 events), floods (6 events), blizzards (3 events), and extreme cold event (1 event). The primary hazard is hailstorms, which account for 57% of all recorded events.
Hailstorms are the most frequently recorded hazard in Ballwin, MO, with 155 events documented. These events have caused a combined $400.3M in property damage.
Yes, Ballwin (ZIP 63021) has 6 recorded flood events. These floods have caused $383K in total property damage. The most recent flood on record occurred on Apr 5, 2025.
Ballwin has 11 recorded tornado events in the historical record. The strongest tornado recorded reached severity level 5/5 on the normalized scale. Total property damage from tornadoes in this area is $27.8M. The most recent tornado was recorded on Jun 4, 2025.
The most damaging natural disaster on record for ZIP code 63021 was 2.5" Hail, which occurred on Apr 10, 2001. This event caused $400M in documented property damage. It was rated at severity level 3/5.
Natural disasters have caused a documented total of $472.5M in property damage in the Ballwin, MO area (ZIP 63021). 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 →