Federal records document 68 natural disaster events in the Dewey, IL area (ZIP 61840). These include 44 hailstorms, 11 blizzards, and 4 tornadoes. Total documented property damage amounts to $25.5M. These events have resulted in 10 recorded deaths and 60 injuries.
The dominant hazard type for Dewey is hailstorms, with 44 recorded events making up 65% of the area's disaster history. One event reached severity level 4 or 5 on the normalized scale. The highest recorded severity for hail-related events here is 4/5 (severe). The most recent recorded hailstorm occurred on May 20, 2025.
There have been 11 recorded blizzards in this area, representing 16% of all disaster events. Of these, 4 (36%) 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 $50K in documented property damage. 7 fatalities have been attributed to blizzards in this area. The most recent recorded blizzard occurred on Jan 10, 2025.
Dewey has experienced 4 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 $25.3M in documented property damage. The most recent recorded tornado occurred on Mar 31, 2023.
Dewey has experienced 4 severe wind events on record. Wind-related events have caused a combined $7K in documented property damage. The most recent recorded severe wind event occurred on Jun 29, 2023.
Dewey has experienced 3 extreme cold events on record. 3 fatalities have been attributed to extreme cold events in this area. The most recent recorded extreme cold event occurred on Jan 20, 2024.
Dewey has experienced 2 floods on record. Of these, 2 (100%) 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 4/5 (severe). Flood-related events have caused a combined $150K in documented property damage. The most recent recorded flood occurred on Jun 26, 2015.
The most significant disaster event on record for Dewey was EF3 Tornado on Apr 9, 1953, which caused $25M in property damage. Another major event was EF1 Tornado (Apr 2, 1982), causing $250K in damages.
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Based on federal and state records, ZIP code 61840 has experienced 68 natural disaster events. The hazard types affecting this area include hailstorms (44 events), blizzards (11 events), tornadoes (4 events), severe wind events (4 events), extreme cold events (3 events), and floods (2 events). The primary hazard is hailstorms, which account for 65% of all recorded events.
Hailstorms are the most frequently recorded hazard in Dewey, IL, with 44 events documented.
Yes, Dewey (ZIP 61840) has 2 recorded flood events. These floods have caused $150K in total property damage. The most recent flood on record occurred on Jun 26, 2015.
Dewey has 4 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 $25.3M. The most recent tornado was recorded on Mar 31, 2023.
The most damaging natural disaster on record for ZIP code 61840 was EF3 Tornado, which occurred on Apr 9, 1953. This event caused $25M in documented property damage. It was rated at severity level 4/5.
Natural disasters have caused a documented total of $25.5M in property damage in the Dewey, IL area (ZIP 61840). 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 →