Affton, MO (ZIP 63123) sits in one of the more disaster-active areas in the region, with 307 natural disaster events on record. These include 192 hailstorms, 83 extreme heat events, and 10 tornadoes. Total documented property damage amounts to $169.9M. These events have resulted in 65 recorded deaths and 3,295 injuries.
The dominant hazard type for Affton is hailstorms, with 192 recorded events making up 63% of the area's disaster history. Of these, 4 (2%) 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 5/5 (extreme). Hail-related events have caused a combined $1.4M in documented property damage. The most recent recorded hailstorm occurred on May 19, 2025.
Extreme heat events account for 27% 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.
Affton has experienced 10 tornadoes on record. Of these, 2 (20%) 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 $28.6M in documented property damage. 17 fatalities have been attributed to tornadoes in this area. The most recent recorded tornado occurred on May 16, 2025.
Affton has experienced 10 severe wind events on record. Wind-related events have caused a combined $755K in documented property damage. The most recent recorded severe wind event occurred on Mar 14, 2025.
Affton has experienced 7 floods on record. Of these, 6 (86%) 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 $95.4M in documented property damage. 6 fatalities have been attributed to floods in this area. The most recent recorded flood occurred on Aug 10, 2025.
Affton 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 Affton was Flash Flood on Jul 26, 2022, which caused $85M in property damage and was linked to 1 fatality. Another major event was Winter Storm (Nov 30, 2006), causing $40M in damages. EF4 Tornado on Feb 10, 1959 also caused significant damage ($25M).
Explore disaster history for adjacent areas
Based on federal and state records, ZIP code 63123 has experienced 307 natural disaster events. The hazard types affecting this area include hailstorms (192 events), extreme heat events (83 events), tornadoes (10 events), severe wind events (10 events), floods (7 events), blizzards (3 events), extreme cold event (1 event), and earthquake (1 event). The primary hazard is hailstorms, which account for 63% of all recorded events.
Hailstorms are the most frequently recorded hazard in Affton, MO, with 192 events documented. These events have caused a combined $1.4M in property damage.
Yes, Affton (ZIP 63123) has 7 recorded flood events. These floods have caused $95.4M in total property damage. The most recent flood on record occurred on Aug 10, 2025.
Affton has 10 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 $28.6M. The most recent tornado was recorded on May 16, 2025.
The most damaging natural disaster on record for ZIP code 63123 was Flash Flood, which occurred on Jul 26, 2022. This event caused $85M in documented property damage. It resulted in 1 reported fatality. It was rated at severity level 5/5.
Natural disasters have caused a documented total of $169.9M in property damage in the Affton, MO area (ZIP 63123). 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 →