ZIP code 03602, covering Alstead, NH, has 61 natural disaster events in the historical record. These include 34 hailstorms, 21 floods, and 3 blizzards. Total documented property damage amounts to $122.3M. These events have resulted in 2 recorded deaths and 1 injury.
The dominant hazard type for Alstead is hailstorms, with 34 recorded events making up 56% of the area's disaster history. Hail-related events have caused a combined $8K in documented property damage. The most recent recorded hailstorm occurred on Aug 5, 2025.
There have been 21 recorded floods in this area, representing 34% of all disaster events. Of these, 14 (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 $118.7M in documented property damage. 2 fatalities have been attributed to floods in this area. The most recent recorded flood occurred on Jun 6, 2025.
Alstead 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 $3.1M in documented property damage. The most recent recorded blizzard occurred on Mar 6, 2011.
Alstead has experienced 2 tornadoes on record. Tornado-related events have caused a combined $252.5K in documented property damage. The most recent recorded tornado occurred on Jul 5, 1984.
Alstead has experienced 1 severe wind event on record. Wind-related events have caused a combined $153K in documented property damage. The most recent recorded severe wind event occurred on Oct 29, 2012.
The most significant disaster event on record for Alstead was Flash Flood on Aug 28, 2011, which caused $105M in property damage. Another major event was Flash Flood (Oct 9, 2005), causing $10M in damages. Ice Storm on Jan 7, 1998 also caused significant damage ($2M).
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Based on federal and state records, ZIP code 03602 has experienced 61 natural disaster events. The hazard types affecting this area include hailstorms (34 events), floods (21 events), blizzards (3 events), tornadoes (2 events), and severe wind event (1 event). The primary hazard is hailstorms, which account for 56% of all recorded events.
Hailstorms are the most frequently recorded hazard in Alstead, NH, with 34 events documented. These events have caused a combined $8K in property damage.
Yes, Alstead (ZIP 03602) has 21 recorded flood events. These floods have caused $118.7M in total property damage. The most recent flood on record occurred on Jun 6, 2025.
Alstead has 2 recorded tornado events in the historical record. Total property damage from tornadoes in this area is $252.5K. The most recent tornado was recorded on Jul 5, 1984.
The most damaging natural disaster on record for ZIP code 03602 was Flash Flood, which occurred on Aug 28, 2011. This event caused $105M in documented property damage. It was rated at severity level 5/5.
Natural disasters have caused a documented total of $122.3M in property damage in the Alstead, NH area (ZIP 03602). 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 →