Enter any address in Addison County, Vermont to see its FEMA flood zone
Flash flooding from thunderstorms is the most frequent type of flood event recorded in Addison County over the last 30 years, with 49 such events documented. Recent examples include flash flooding in Addison and northwestern Windsor Counties on August 3, 2023, where 3 to 6 inches of rain fell, with Middlebury being severely impacted. Another event on July 10, 2024, caused flash flooding across several counties, including Addison.
Homeowners in Zone A, which has seen 57 National Flood Insurance Program claims averaging over $11,000, should pay close attention. Additionally, properties in Zone X_SHADED and Zone X_UNSHADED have experienced significant payouts and water depths, suggesting these areas also warrant careful consideration for flood preparedness.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
58 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Addison County, Vermont has recorded 80 flood-related events since 1996 according to NOAA's Storm Events Database, including 49 flash floods and 27 river or area floods. The county has received 30 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 (1973–2024)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Tropical Depression Debby | Tropical Storm | Aug 8, 2024 |
| Severe Storm, Flooding, Landslides, And Mudslides | Severe Storm | Jul 9, 2024 |
| Severe Storms And Flooding | Flood | Aug 3, 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 Storm And Flooding | Severe Storm | Oct 31, 2019 |
| Severe Storm And Flooding | Severe Storm | Oct 29, 2017 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | May 17, 2025 | 20.00K |
| Flash Flood | Jul 10, 2025 | 50.00K |
| Flash Flood | Jul 10, 2024 | 100.00K |
| Flash Flood | Jul 14, 2023 | 500.00K |
| Flash Flood | Jul 13, 2023 | 100.00K |
| Flash Flood | Aug 3, 2023 | 1.20M |
| Flash Flood | May 16, 2022 | 5.00K |
| Flash Flood | Aug 26, 2021 | 10.00K |
| Flash Flood | Jun 30, 2020 | 10.00K |
| Flash Flood | Jun 20, 2019 | 50.00K |
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...
Flash Flood — Jul 10, 2025
A weak cold front slowly moved across northern NY and VT during the afternoon and evening hours of July 10th. Several rounds of tropical showers and thunderstorms traversed the area with a few storms pulsing to severe limits and localized excessive rainfall (4-5+ inches) in NE VT leading to localized flash flooding.
Flash Flood — Jul 10, 2024
The remnants of TS Beryl combined with deep tropical moisture and a stationary front draped across the region produced multiple rounds of heavy showers and storms. This led to numerous reports of flash flooding, some locally severe across a roughly 50 mile swath through Chittenden, Washington, Lamoille, Caledonia, Orleans and Essex Counties.
Flash Flood — Jul 14, 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.
Flash Flood — Jul 13, 2023
Scattered thunderstorms, some with torrential rainfall affected portions of Addison and Rutland Counties. One to locally four inches of rain fell in a some areas, leading to a few reports of flash flooding and road washouts.
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 Addison 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 Addison 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.