Windham County, VT Environment & Hazard Risk
Relatively Low natural hazard risk, led by landslide. 1,038 storm events since 1996.
- Expected yearly loss
- $20.3M
- Relatively Low nationally
- Storm events since 1996
- 1,038
- Most often winter weather
- Flood insurance policies
- 269
- 1.3% of homes
- Hurricanes nearby
- 1
- 7 tropical storms or stronger since 1878
Natural hazard risk
FEMA National Risk Index, December 2025
Overall risk
Relatively Low
Score 56.9 of 100
Social vulnerability
Relatively Low
Score 31.7 of 100
Community resilience
Relatively High
Score 74.4 of 100
Community resilience runs the other way: a higher rating means a community can recover faster.
Building value exposed: $13.8B · Agriculture value exposed: $36.8M · Risk-adjusted yearly loss: $20M
Risk by hazard
- LandslideRelatively Low$33.3K/yr expected annual loss, about 1.6 events a year
- HurricaneRelatively Low$987K/yr expected annual loss, about once every 16 years
- Ice stormRelatively Moderate$262K/yr expected annual loss, about 1.2 events a year
- Cold waveRelatively Moderate$2.1M/yr expected annual loss, about 3.8 events a year
- LightningRelatively Moderate$369K/yr expected annual loss, about 23 events a year
- EarthquakeVery Low$288K/yr expected annual loss, about once every 1,071 years
- Winter weatherRelatively Low$65.8K/yr expected annual loss, about 23 events a year
- AvalancheVery Low$417/yr expected annual loss, about once every 100 years
- TornadoRelatively Low$914K/yr expected annual loss, about once every 7 years
- Heat waveVery Low$221K/yr expected annual loss, about 1.3 events a year
- HailVery Low$136K/yr expected annual loss, about 2.6 events a year
- Strong windRelatively Low$230K/yr expected annual loss, about 1.3 events a year
- WildfireVery Low$8,499/yr expected annual loss, about once every 56,749 years
Bars show the national percentile score (0 to 100) for each hazard. Dollar figures are expected annual losses to buildings, people and crops. Not rated here: coastal flooding, drought, riverine flooding, tsunami, volcanic activity.
Flood risk and insurance
National Flood Insurance Program and FEMA flood maps
Check the flood zone for an address
- Homes with flood insurance
- 269 of 21,012 (1.3%)
- Homes in high-risk flood zones
- 749
- Insured in high-risk zones
- 117 (16%)
- Flood claims since 1978
- 312
- Claims paid since 1978
- $10.9M
Flood claims paid per year
- Hurricane Irene$9.1M · 177 claims
- Vermont/New York Flooding$1.2M · 24 claims
- Flooding$36.4K · 2 claims
- December Nor'easter$24.8K · 1 claim
- March 2010 Nor'easter$9,025 · 1 claim
- Hurricane Sandy$0 · 1 claim
Storm history
Since 1996: 1,038 events, 1 death, $11.1M in damage
- Winter Weather191
- Winter Storm148
- Thunderstorm Wind143
- Strong Wind98
- Heavy Snow69
- Cold/Wind Chill69
- Flash Flood68 · 1 death
- Flood60
- High Wind38
- Heat37
Events per year
5 tornadoes on record (EF1 1, F0 2, F1 1, F2 1).
Most damaging storms
Since 1996, ranked by deaths, injuries and damage
- Flash Flood08/28/2011
Whitingham, Windham County
1 death
What happened
Route 100 in Windham County was closed due to flooding and wash outs. Portions of Route 100 remained closed after the flood waters receded due to significant damage. The North Branch Deerfield River runs along a portion of Route 100 from the Mount Snow area to Wilmington. Along Dover Road, one house was destroyed and floated down the North Branch Deerfield River and other houses were destroyed or significantly damage. Much of the road was reported washed away. ||A woman drowned when the car she was in became trapped by flood waters from the North Branch Deerfield River in Wilmington. The time of her death is unknown.
- Lightning07/02/2014
Guilford, Windham County
7 injured
What happened
Seven fire fighters responding to a structure fire were struck by lightning during a thunderstorm in Guilford. Although all seven were sent to a hospital with minor injuries, no serious injuries were reported.
- Flash Flood07/30/2021
Athens, Windham County
1 injured, $600K damage
What happened
The Town of Westminster suffered major impact due to flash flooding. Roads around the town were disintegrated making them impassable along with at least one culvert washed away. There were reports of mudslides and standing water on other roads around the town. One home off Henwood Hill Road is uninhabitable when rock and gravel and debris was deposited against the foundation and flood water gouged a new riverbed next to the house, where a large culvert had been. Farther up the road, severe washouts resulted in one of two cases of cars to end up in a massive ditch. An out-of-state driver suffered a concussion after ending up in a gouged-out ditch along a portion of Orchard Hill Road.
- Flash Flood07/30/2021
Newfane, Windham County
$1M damage
What happened
The Town of Putney suffered major impact due to flash flooding. Numerous roads were closed throughout the town with Putney Mountain, Holland Hill, Pine Banks and River Road the hardest hit. A culvert collapsed on Putney Mountain Road with additional areas along the road washed out. A large section of River Road was washed away. Approximately 300 individuals were reported isolated individuals due to main road washouts. The Putney General Store on Kimball Hill reported damage due to flooding.
- Flash Flood07/30/2021
Bellows Falls, Windham County
$1M damage
What happened
The Town of Rockingham suffered significant damage to roads and infrastructure due to flash flooding. Numerous roads were closed around town including Ski Bowl, Leach, Rockingham Hill, Hartley Hill, Pleasant Valley, Paradise, Hall Bridge, Corey Hill and Darby Hill. Residential damage was also reported. The Laurel Avenue-Hyde Hill neighborhood in Bellows Falls was blocked by flood debris, sending several feet of water into the area, leaving behind lots of mud.
- Flash Flood06/13/1996
Grafton, Windham County
$1M damage
What happened
A very moist and unstable atmosphere remained over Vermont on June 13. This produced a second straight day of torrential rains from training thunderstorms in the Grafton area, which resulted in disastrous flash flooding. The governor declared Grafton a disaster area and the Vermont National Guard was called in to assist in repairing roads. Grafton was completely isolated with all roads made impassable by washouts. Routes 35 and 121 were washed out in several sections. The Saxtons River reached its third highest stage. A 250 pound propane gas tank was washed away. Several bridges were severely damaged. Fourteen homes were affected by the flooding with three sustaining severe damage. The worst damage occurred at the Bahric House which dated from the mid 1800s. Rocks and mud were piled up to the back windows on the main floor.
Drinking water
48 community water systems serve about 36,329 people. Violations since 2021.
7 systems had health-based violations, such as a contaminant over the legal limit or a missed treatment step. 3 systems had a violation of any kind still open at last report.
- Brattleboro Water DeptServes 12,200 · Surface water · Local governmentNo health violations
- Winhall Stratton F D 1Serves 6,200 · Groundwater · Local government1 health violation+27 monitoring or reporting
- Bellows Falls Water DeptServes 4,000 · Surface water · Local governmentNo health violations
- Chimney HillServes 2,594 · Groundwater · PrivateNo health violations+185 monitoring or reporting
- Town of Wilmington Water SystemServes 1,400 · Surface water · Local governmentNo health violations+1 monitoring or reporting
- Putney Water SystemServes 1,300 · Groundwater · Local governmentNo health violations
- Timber Creek Coa INCServes 1,116 · Groundwater · PrivateNo health violations+5 monitoring or reporting
- Cold Brook Fd Base AreaServes 761 · Groundwater · Local governmentNo health violations+2 monitoring or reporting
Largest systems by population served. Monitoring and reporting violations mean required tests or notices were late or missing, not that the water was unsafe.
Pollution sites
1 Superfund site and 4 toxic release facilities in Windham County
Superfund sites
- Bfi Sanitary Landfill (Rockingham)FinalRockingham
Toxic release facilities
- Garware Fulflex USA Inc.22,465 lbs released, Brattleboro
- Ce Bradley Laboratories Inc626 lbs released, Brattleboro
- Commonwealth Dairy LLC54 lbs released, Brattleboro
- Whitney Blake Co0 lbs released, Bellows Falls
Total: 23,145 lbs in 2024, 647 lbs to air.
Superfund sitesToxic release facilitiesEPA inspections and enforcementAir toxics cancer risk63 historic places
Frequently asked questions
- How risky is Windham County for natural disasters?
- FEMA rates Windham County relatively low for overall natural hazard risk, with expected losses of $20.3M a year. The highest-rated hazards are landslide (relatively low), hurricane (relatively low), ice storm (relatively moderate).
- What storms are most common in Windham County?
- Since 1996, NOAA recorded 1,038 storm events affecting Windham County, most often winter weather (191), winter storm (148), thunderstorm wind (143).
- How many tornadoes have hit Windham County?
- 5 tornadoes have been recorded in Windham County since 1950.
- How many homes in Windham County have flood insurance?
- 269 residential flood insurance policies are in force in Windham County, covering about 1.3% of homes. The program has paid $10.9M on 312 claims here since 1978.
- What is the weather like in Windham County?
- At Walpole 2s Nepp, average highs reach 81°F in Jul and lows fall to 13°F in Jan, with 47.0 inches of rain a year (1991-2020 normals).
Source: FEMA (National Risk Index, NFIP), NOAA (Storm Events, HURDAT2, Climate Normals), EPA · Last updated 08/01/2026 · Storm counts include events in forecast zones that touch the county. This product uses the FEMA OpenFEMA API, but is not endorsed by FEMA.