ZIP code 60521, covering Oak Brook, IL, has 73 natural disaster events in the historical record. These include 41 hailstorms, 19 severe wind events, and 6 tornadoes. Total documented property damage amounts to $311.2M. A total of 15 injuries have been reported across all events.
Hailstorms represent the most common natural hazard in this area, accounting for 56% of all recorded events (41 total). Hail-related events have caused a combined $30K in documented property damage. The most recent recorded hailstorm occurred on Aug 16, 2025.
There have been 19 recorded severe wind events in this area, representing 26% of all disaster events. Wind-related events have caused a combined $5.3M in documented property damage. The most recent recorded severe wind event occurred on Jun 13, 2022.
Oak Brook has experienced 6 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 $750K in documented property damage. The most recent recorded tornado occurred on Jul 15, 2024.
Oak Brook has experienced 5 floods on record. Of these, 4 (80%) 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 $305.1M in documented property damage. The most recent recorded flood occurred on Aug 17, 2025.
Oak Brook has experienced 2 earthquakes on record. The most recent recorded earthquake occurred on Nov 4, 2013.
The most significant disaster event on record for Oak Brook was Flash Flood on Jul 25, 2025, which caused $200M in property damage. Another major event was Flash Flood (Aug 17, 2025), causing $55M in damages. Flash Flood on Aug 22, 2014 also caused significant damage ($50M).
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Based on federal and state records, ZIP code 60521 has experienced 73 natural disaster events. The hazard types affecting this area include hailstorms (41 events), severe wind events (19 events), tornadoes (6 events), floods (5 events), and earthquakes (2 events). The primary hazard is hailstorms, which account for 56% of all recorded events.
Hailstorms are the most frequently recorded hazard in Oak Brook, IL, with 41 events documented. These events have caused a combined $30K in property damage.
Yes, Oak Brook (ZIP 60521) has 5 recorded flood events. These floods have caused $305.1M in total property damage. The most recent flood on record occurred on Aug 17, 2025.
Oak Brook has 6 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 $750K. The most recent tornado was recorded on Jul 15, 2024.
The most damaging natural disaster on record for ZIP code 60521 was Flash Flood, which occurred on Jul 25, 2025. This event caused $200M in documented property damage. It was rated at severity level 5/5.
Natural disasters have caused a documented total of $311.2M in property damage in the Oak Brook, IL area (ZIP 60521). 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 →