Federal records document 149 natural disaster events in the Groton, SD area (ZIP 57445). These include 104 hailstorms, 21 severe wind events, and 8 tornadoes. Total documented property damage amounts to $21.9M. These events have resulted in 5 recorded deaths and 31 injuries.
Hailstorms represent the most common natural hazard in this area, accounting for 70% of all recorded events (104 total). One event reached severity level 4 or 5 on the normalized scale. The highest recorded severity for hail-related events here is 5/5 (extreme). The most recent recorded hailstorm occurred on Jul 31, 2024.
There have been 21 recorded severe wind events in this area, representing 14% of all disaster events. Of these, 3 (14%) were rated at severity level 4 or 5 — the most intense on the normalized scale. The highest recorded severity for wind-related events here is 4/5 (severe). The most recent recorded severe wind event occurred on Aug 28, 2021.
Groton has experienced 8 tornadoes on record. Of these, 2 (25%) 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 4/5 (severe). Tornado-related events have caused a combined $3.1M in documented property damage. The most recent recorded tornado occurred on Jun 19, 1979.
Groton 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 $18.9M in documented property damage. The most recent recorded flood occurred on Apr 12, 2023.
Groton has experienced 6 blizzards on record. Of these, 3 (50%) 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 4/5 (severe). 2 fatalities have been attributed to blizzards in this area. The most recent recorded blizzard occurred on Apr 10, 2013.
Groton 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 25, 2018.
The most significant disaster event on record for Groton was Flood on Jun 1, 2019, which caused $11.5M in property damage. Another major event was Flood (Jul 1, 2005), causing $6.4M in damages. EF1 Tornado on Jun 19, 1979 also caused significant damage ($2.5M).
Explore disaster history for adjacent areas
Based on federal and state records, ZIP code 57445 has experienced 149 natural disaster events. The hazard types affecting this area include hailstorms (104 events), severe wind events (21 events), tornadoes (8 events), floods (7 events), blizzards (6 events), and extreme cold events (3 events). The primary hazard is hailstorms, which account for 70% of all recorded events.
Hailstorms are the most frequently recorded hazard in Groton, SD, with 104 events documented.
Yes, Groton (ZIP 57445) has 7 recorded flood events. These floods have caused $18.9M in total property damage. The most recent flood on record occurred on Apr 12, 2023.
Groton has 8 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 $3.1M. The most recent tornado was recorded on Jun 19, 1979.
The most damaging natural disaster on record for ZIP code 57445 was Flood, which occurred on Jun 1, 2019. This event caused $11.5M in documented property damage. It was rated at severity level 5/5.
Natural disasters have caused a documented total of $21.9M in property damage in the Groton, SD area (ZIP 57445). 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 →