Enter any address in Windham County, Vermont to see its FEMA flood zone
Flash flooding from heavy rainfall events is the dominant flood character in Windham County. Between 2000 and 2023, NOAA Storm Events data recorded 68 flash flood events and 60 flood events. Recent examples include flash flooding in July 2023, where rainfall totals of 2.50 to 5.00 inches caused widespread flooding, and a flash flood event in June 2025 that resulted in isolated poor drainage flooding and a road washout.
National Flood Insurance Program (NFIP) claims data indicates that properties in Zone A have experienced the most claims, with 183 claims averaging $39,162 and an average water depth of 5.1 feet. Properties in Zone X also show significant claims, with 46 claims averaging $25,584 and an average water depth of 8.0 feet, and Zone X_UNSHADED saw 7 claims with an average payout of $62,309 and 1.1 feet of water. Homeowners in Zone A, Zone X, and Zone X_UNSHADED, as well as those in areas with unknown flood zone designations, should pay the most attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
82 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Windham County, Vermont has recorded 130 flood-related events since 1996 according to NOAA's Storm Events Database, including 68 flash floods and 60 river or area floods. The county has received 24 federal disaster declarations, 8 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1969–2024)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Tropical Depression Debby | Tropical Storm | Aug 8, 2024 |
| Severe Storm And Flooding | Severe Storm | Dec 18, 2023 |
| Flooding | Flood | Jul 9, 2023 |
| Severe Storms, Flooding, Landslides, And Mudslides | Flood | Jul 7, 2023 |
| Tropical Storm Henri | Hurricane | Aug 22, 2021 |
| Severe Storm And Flooding | Flood | Jul 29, 2021 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storm And Flooding | Severe Storm | Oct 29, 2017 |
| Tropical Storm Irene | Hurricane | Aug 27, 2011 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jun 6, 2025 | 1.00K |
| Flood | Dec 18, 2023 | 1.00K |
| Flood | Dec 18, 2023 | 10.00K |
| Flood | Dec 18, 2023 | 20.00K |
| Flood | Dec 18, 2023 | 5.00K |
| Flood | Dec 18, 2023 | 40.00K |
| Flood | Dec 18, 2023 | 50.00K |
| Flood | Dec 18, 2023 | 100.00K |
| Flood | Jul 11, 2023 | 25.00K |
| Flood | Jul 10, 2023 | 25.00K |
Flash Flood — Jun 6, 2025
A frontal boundary stalled to the south of the ALY County Warning Area, in tandem with several mid- and upper-level disturbances generated widespread heavy rainfall and scattered thunderstorms across southern Vermont on June 6 and 7. Prolonged, moderate to locally heavy downpours lead to isolated poor drainage flooding in Windham County, with one report of a washout on Westminister W. Road. Ove...
Flood — Dec 18, 2023
An area of low pressure tracked up the East Coast and intensified in the process as it brought widespread moderate to heavy rainfall across southern Vermont on December 18, 2023. The rain fell light to moderate in intensity during the early morning hours, then became heavier during the later morning and early afternoon hours before tapering off. Rainfall totals were between 2 and 4 inches. This...
Flood — Jul 11, 2023
A strong upper-level system brought widespread rounds of showers and embedded thunderstorms to southern Vermont on July 9-11, 2023. The steadiest and heaviest rainfall occurred from the afternoon hours on July 9 through the morning hours on July 10. Rainfall totals generally ranged between 2.50 and 5.00 inches with some localized amounts of around 6 inches across the southern Green Mountains.||...
Flood — Jul 10, 2023
A strong upper-level system brought widespread rounds of showers and embedded thunderstorms to southern Vermont on July 9-11, 2023. The steadiest and heaviest rainfall occurred from the afternoon hours on July 9 through the morning hours on July 10. Rainfall totals generally ranged between 2.50 and 5.00 inches with some localized amounts of around 6 inches across the southern Green Mountains.||...
Flash Flood — Jul 10, 2023
A strong upper-level system brought widespread rounds of showers and embedded thunderstorms to southern Vermont on July 9-11, 2023. The steadiest and heaviest rainfall occurred from the afternoon hours on July 9 through the morning hours on July 10. Rainfall totals generally ranged between 2.50 and 5.00 inches with some localized amounts of around 6 inches across the southern Green Mountains.||...
Source: NOAA National Weather Service Storm Events Database.
Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).
FEMA assigns flood zone designations to areas in Windham County, Vermont:
AE High Risk — 1% annual chance of flooding. Insurance required.
VE Very High Risk — Coastal flooding with wave action.
X (Shaded) Moderate Risk — 500-year floodplain.
X Low Risk — Outside major floodplains.
Properties in Windham County, Vermont that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.
Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.
Visit FloodSmart.gov to find an agent and get a quote.