Alton, NH (ZIP 03809) has a moderate disaster history with 26 recorded events. These include 12 hailstorms, 5 tornadoes, and 4 floods. Total documented property damage amounts to $7.3M.
With 12 recorded incidents (46% of all events), hailstorms are the leading natural hazard for this ZIP code. The most recent recorded hailstorm occurred on Sep 8, 2023.
Alton has experienced 5 tornadoes on record. Tornado-related events have caused a combined $3M in documented property damage. The most recent recorded tornado occurred on Jul 24, 2008.
Alton has experienced 4 floods on record. Of these, 2 (50%) 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 $67K in documented property damage. The most recent recorded flood occurred on Dec 23, 2022.
Alton has experienced 3 severe wind events on record. Wind-related events have caused a combined $150K in documented property damage. The most recent recorded severe wind event occurred on Aug 22, 2020.
Alton has experienced 2 blizzards 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 winter storm events here is 5/5 (extreme). Winter storm events have caused a combined $4.1M in documented property damage. The most recent recorded blizzard occurred on Dec 11, 2008.
The most significant disaster event on record for Alton was Ice Storm on Jan 7, 1998, which caused $3.8M in property damage. Another major event was EF2 Tornado (Jun 22, 1981), causing $2.5M in damages.
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Based on federal and state records, ZIP code 03809 has experienced 26 natural disaster events. The hazard types affecting this area include hailstorms (12 events), tornadoes (5 events), floods (4 events), severe wind events (3 events), and blizzards (2 events). The primary hazard is hailstorms, which account for 46% of all recorded events.
Hailstorms are the most frequently recorded hazard in Alton, NH, with 12 events documented.
Yes, Alton (ZIP 03809) has 4 recorded flood events. These floods have caused $67K in total property damage. The most recent flood on record occurred on Dec 23, 2022.
Alton has 5 recorded tornado events in the historical record. The strongest tornado recorded reached severity level 3/5 on the normalized scale. Total property damage from tornadoes in this area is $3M. The most recent tornado was recorded on Jul 24, 2008.
The most damaging natural disaster on record for ZIP code 03809 was Ice Storm, which occurred on Jan 7, 1998. This event caused $3.8M in documented property damage. It was rated at severity level 5/5.
Natural disasters have caused a documented total of $7.3M in property damage in the Alton, NH area (ZIP 03809). 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 →