Enter any address in Windsor County, Vermont to see its FEMA flood zone
Flash flooding from thunderstorms is the dominant flood character in Windsor County. Between 1996 and 2026, NOAA Storm Events data recorded 44 flash flood events and 11 flood events. For example, heavy rainfall between 4 and 9 inches in July 2023 led to flash and riverine flooding across the Green Mountains, impacting the White River basin. In May 2025, thunderstorms produced 2 to 3 inches of rain, resulting in flash flooding.
National Flood Insurance Program (NFIP) claims data shows that properties in Zone A have experienced the most claims, with an average payout of $57,788 and an average water depth of 6.3 feet. Zone X also shows significant claims, with an average payout of $41,953 and an average water depth of 8.5 feet, though these are typically areas of moderate flood hazard. Homeowners in areas designated as Zone A, and those located near rivers and streams, should pay particular attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
43 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Windsor County, Vermont has recorded 55 flood-related events since 1996 according to NOAA's Storm Events Database, including 44 flash floods and 11 river or area floods. The county has received 27 federal disaster declarations, 9 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 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms And Flooding | Flood | Apr 15, 2019 |
| Severe Storms And Flooding | Severe Storm | Jun 29, 2017 |
| Severe Winter Storm | Severe Storm | Dec 9, 2014 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | May 17, 2025 | 250.00K |
| Flood | Jun 6, 2025 | 25.00K |
| Flash Flood | Jul 18, 2023 | 100.00K |
| Flood | Dec 18, 2023 | 250.00K |
| Flash Flood | Jul 10, 2023 | 5.00K |
| Flash Flood | Jul 10, 2023 | 25.00M (1 deaths) |
| Flash Flood | Jul 7, 2023 | 25.00K |
| Flash Flood | Aug 4, 2023 | 50.00K |
| Flash Flood | Aug 3, 2023 | 100.00K |
| Flash Flood | Apr 15, 2019 | 500.00K |
Flash Flood — May 17, 2025
A weak area of low pressure and associated front moved across northern NY and Vermont during the afternoon and evening hours of May 17th. This system moved across a relatively unstable airmass across the region that resulted in numerous showers and thunderstorms.||Some of the thunderstorms were severe with damaging winds and large hail upward of golf ball size (1.75 inches diameter). In additio...
Flood — Jun 6, 2025
Scattered, slow moving thunderstorms developed across portions of south central Vermont on the afternoon of June 6, 2025 as a slow moving front sagged southward through the region. A few of the storms produced localized heavy rainfall of between 2 and 3.5 inches, leading to localized reports of flooding in Windsor County, VT.
Flash Flood — Jul 18, 2023
Scattered thunderstorms, some with torrential rainfall affected scattered areas across Vermont on July 14. Two to locally four inches of rain fell in a some areas, leading to a few reports of flash flooding and road washouts.
Flood — Dec 18, 2023
A very deep trough across the eastern seaboard allowed a deep, mild, moist flow from the Gulf of Mexico and the Atlantic ocean to feed into the northeast United States, including VT and NY on December 17th and 18th.||Surface low pressure across Florida on December 17th moved north along the eastern seaboard into New England on December 18th. Mild, moist air delivered 1.5 to 3+ inches of rainfal...
Flash Flood — Jul 10, 2023
Multiple rounds of heavy rainfall affected Vermont from late afternoon of the 9th through the early morning hours on the 11th. During the roughly 36-hour period, 4 to as much as 9 inches of rain fell across much of the Green Mountains, leading to devastating flash and riverine flooding.||Major river flooding was observed in the Winooski, Lamoille and Otter Creek basins with moderate to major f...
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 Windsor 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 Windsor 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.