Hail & Wind Storms in South Burlington, VT — Latest Dates and Sizes
Hail and wind activity within ~25 miles of South Burlington, Vermont or recorded for its county: the last 12 months from NWS warnings, storm reports, and station measurements, plus official NOAA records back to 2010.
Latest hail and wind near South Burlington
- Last reported hail (0.75 in.+, screening): August 8, 2026 — 1.25 in. reported 15.8 mi N of South Burlington (South Hero), NWS Local Storm Report.
- Last wind gust 45 mph+ (screening): August 8, 2026 — 62 mph measured 13.7 mi N of South Burlington (Sand Bar State Park), NWS Local Storm Report.
- 2026 so far: 2 hail days and 7 wind days within 25 miles (days with a storm report or station gust at the screening thresholds; warnings alone never count).
| Date | Largest reported hail | Strongest gust |
|---|---|---|
| August 8, 2026 | 1.25 in. reported | 62 mph measured |
| July 16, 2026 | — | 53 mph measured (New York) |
| July 1, 2026 | 1.00 in. reported | — |
| April 5, 2026 | — | 59 mph reported |
| April 3, 2026 | — | 57 mph reported |
| March 17, 2026 | — | 74 mph reported |
| March 16, 2026 | — | 61 mph reported |
| January 9, 2026 | — | 50 mph measured |
| December 21, 2025 | — | 49 mph reported |
| December 19, 2025 | — | 67 mph reported |
Was your address hit on August 8, 2026? Check any address free with the Free Report Snapshot — a YES/NO estimate at the screening thresholds.
South Burlington storm facts
- StormAuditor's analysis of NOAA and National Weather Service records found 46 wind and hail events, NWS warning products included, within 25 miles of South Burlington, Vermont (including the parts of New York inside that circle) or recorded for Chittenden County in the 12 months ending October 7, 2026 (33 wind, 13 hail).
- The strongest gust within 25 miles of South Burlington in the last 12 months was 74 mph, reported 18.8 mi E of South Burlington (Mount Mansfield) on March 17, 2026 (NWS Local Storm Report; storm reports and station gusts only, warnings excluded).
- The largest hail reported within 25 miles of South Burlington in the last 12 months was 1.25 in., 15.8 mi N of South Burlington (South Hero) on August 8, 2026 (NWS Local Storm Report).
- The busiest day by event count near South Burlington was December 19, 2025, with 10 events.
- Chittenden County alone recorded 24 of those wind and hail events (16 wind, 8 hail); the Vermont page ranks counties by events of every type, floods and Special Weather Statements included.
South Burlington, Vermont storm history at a glance (last 12 months)
This free weather history for South Burlington — home to about 22,000 residents — draws on StormAuditor's consolidated public record: 46 wind and hail events within 25 miles of South Burlington (including the parts of New York inside that circle) or recorded for Chittenden County in the trailing 12 months — 33 wind and 13 hail.
Events combine NWS warning products, observed Local Storm Reports, station measurements and official NCEI records in one event table. Because they include warnings, and wind covers thunderstorm and non-thunderstorm wind alike, they measure something different from the NCEI entry counts in the history section below; the two are not comparable year to year.
Busiest days near South Burlington by event count
Ranked by the number of 12-month events, NWS warnings included, so a day with many warnings can outrank a day with larger hail.
- December 19, 2025 — 10 events incl. warnings · 10 wind
- August 8, 2026 — 7 events incl. warnings · 3 wind · 4 hail
- March 17, 2026 — 5 events incl. warnings · 5 wind
- August 10, 2026 — 4 events incl. warnings · 2 wind · 2 hail
- July 16, 2026 — 3 events incl. warnings · 2 wind · 1 hail
How these numbers are counted
The storm numbers on this page are counted in four different ways, plus the free address check. Each answers a different question with its own size cutoffs, area and time span, so compare numbers within one group, not across groups.
- Storm days (latest hail and wind): A day in the last 12 months when at least one report within 25 miles of South Burlington showed hail 0.75 in. or larger or wind of 45 mph or more (StormAuditor screening thresholds). Reports are NWS storm reports from spotters, the public and officials, plus weather-station gusts, which count from 50 mph. A warning on its own never makes a storm day. The latest and largest hail, the latest and strongest gust, and the storm-day table all use this record. The 25-mile circle around South Burlington reaches into New York. Values marked with that state's name come from there: they count for South Burlington but not on the Vermont state page, which counts reports inside Vermont only.
- Storm-date pages (NWS severe): A storm-date page is published only when at least one report or station gust within 25 miles of a city met the National Weather Service severe criteria (hail 1.00 in. or larger, or wind 58 mph or more), at least two separate observations were logged, and the day ranks among the most significant. A storm report that relays an airport weather station's reading (the same station, the same gust and the same time) counts once, as the station reading. Not every storm day gets a page; when one does, the page and the storm-day table show the same largest hail and strongest gust.
- Events (12-month counts): Events count NWS warnings, storm reports (wind 50 mph+, hail 0.75 in.+), station gusts (50 mph+) and NCEI entries within 25 miles of South Burlington or recorded for Chittenden County, tornado entries counted as wind. One event is one place on one day, counted separately for hail and for wind. A weather station or storm-report point counts once a day, at that day's highest reading, however many readings it filed; a place with hail and wind on the same day is two events. NWS warnings count once per county per day, and each NCEI entry once per place per day. A storm report that relays an airport weather station's reading (the same station, the same gust and the same time) counts once, as the station reading. The same report arriving through another feed (SPC or NCEI) is one record. Events measure how busy the area was, not whether a storm hit: one storm can bring warnings and reports from many places, so the busiest days by event count can differ from the storm days.
- NOAA history (since 2010): The official NOAA storm record (NCEI Storm Events) within 25 miles of South Burlington or in Chittenden County from January 1, 2010 to the day before the 12-month window starts: hail 0.50 in.+, thunderstorm wind 40 mph+ and tornadoes. It is a separate, older record with its own "storm days" (days with any entry), so its counts are not compared with the 12-month numbers.
- Free Report Snapshot: A free YES/NO estimate for one address, from radar and wind analysis at the property rather than area reports, at the same screening thresholds: hail 0.75 in. or wind 45 mph.
Full method: Methodology and Data Sources.
South Burlington hail and wind history in NOAA NCEI records, 2010–Oct. 2025
This section covers January 1, 2010 through October 6, 2025. Storms from October 7, 2025 on are in the 12-month summary above, so no date is counted in both.
NOAA's Storm Events Database holds 512 NCEI Storm Events entries within 25 miles of South Burlington or in Chittenden County for this period, on 115 separate storm days. Thunderstorm wind outnumbers hail about 2.2 to 1 here: 349 wind reports against 162 hail reports.
On May 26, 2011, 2.50 in. (tennis-ball size) hail was reported in Washington County — the largest in these records for this area. Hail of 2 inches or more appears in 2 different years of this record, the latest being 2012. The strongest measured thunderstorm gust was 75 mph on July 4, 2012 in Addison County. NCEI also lists 1 tornado entry for the area — one entry per county a tornado crossed.
Hail peaks in May (36% of all hail reports), while thunderstorm wind reports cluster in July. None of these NCEI storm days fell in December through February.
The most storm days came in 2011, with 12; the fewest in a full year was 2, in 2018. Across 2022–2024, the area averaged 7.3 storm days a year, matching the 15-year average of 7.3.
- Average: 7.3 storm days a year (2010–2024)
- May and July: 69% of all hail reports
- Most hail reports in one year: 44 in 2011
- Hail of 1 in. or larger reported in 13 of 15 full years (2010–2024)
| Year | Hail reports | Thunderstorm wind reports | Tornado entries | Storm days | Largest hail | Strongest measured gust |
|---|---|---|---|---|---|---|
| 2010 | 25 | 27 | 0 | 6 | 1.25 in. | 58 mph |
| 2011 | 44 | 36 | 0 | 12 | 2.50 in. | 60 mph |
| 2012 | 37 | 46 | 0 | 9 | 2.00 in. | 75 mph |
| 2013 | 4 | 26 | 0 | 9 | 1.00 in. | — |
| 2014 | 4 | 12 | 0 | 5 | 1.50 in. | — |
| 2015 | 13 | 7 | 0 | 7 | 1.75 in. | — |
| 2016 | 6 | 31 | 0 | 9 | 1.25 in. | 60 mph |
| 2017 | 8 | 21 | 0 | 9 | 1.50 in. | 58 mph |
| 2018 | 3 | 9 | 0 | 2 | 1.50 in. | — |
| 2019 | 0 | 18 | 0 | 5 | — | — |
| 2020 | 2 | 21 | 0 | 7 | 1.00 in. | — |
| 2021 | 1 | 19 | 0 | 7 | 1.25 in. | — |
| 2022 | 1 | 16 | 1 | 6 | 0.75 in. | — |
| 2023 | 3 | 16 | 0 | 9 | 1.25 in. | 60 mph |
| 2024 | 5 | 22 | 0 | 7 | 1.25 in. | 61 mph |
| 2025 through Oct. 6 | 6 | 22 | 0 | 6 | 1.75 in. | 58 mph |
Download this history: CSV · JSON at https://www.stormauditor.com/downloads/storm-history/vt/south-burlington.json (free, open license, cite StormAuditor).
Source: NOAA NCEI Storm Events Database (thunderstorm wind, hail, and tornado entries; hail 0.50 in. or larger, wind 40 mph or more; wind converted from knots).
South Burlington storm history questions, 2010–Oct. 2025
How big did hail get in South Burlington, 2010–Oct. 2025?
2.50 in., tennis-ball size, reported on May 26, 2011 in Washington County, per NCEI. Other years with hail of 2 inches or more: 2012.
Which year had the most storm days near South Burlington, 2010–Oct. 2025?
2011, with 12 storm days (44 hail reports, 36 thunderstorm wind reports). The 15-year average is 7.3 storm days.
How many hail reports does South Burlington see in a typical year?
About 10 hail reports a year (2010–2024 average), with 1-inch or larger hail in 13 of 15 years. Thunderstorm wind averages 22 reports a year.
What month has the most hail near South Burlington?
May has the most hail reports (59, 2010–Oct. 2025), followed by July (53) and June (29).
What is the strongest measured thunderstorm gust near South Burlington, 2010–Oct. 2025?
75 mph, measured on July 4, 2012 in Addison County. Only gusts NCEI lists as measured count here; gusts measured on a date and county with a tornado entry, and entries of 120 knots or more (known entry errors), are left out.
South Burlington hail map and wind map
Researching hail or wind in South Burlington? The Hail Explorer and Wind Explorer map radar-derived hail swaths and peak-gust wind swaths across Vermont, including the South Burlington metro: pick any storm date and see how estimated hail size and gust bands tracked through Chittenden County. Both explorers are included with Pro+ and Organization plans.
County-level activity is on the Impact Heatmap (free with an account), and day-by-day history is on the Storm Calendar (Pro plans and higher).
Free South Burlington weather report by address
Area maps show where storms tracked; an insurance claim or roof inspection turns on what happened at the property. Three ways to check one South Burlington address:
- The Free Report Snapshot answers YES/NO instantly on estimated wind of 45 mph or more and hail of 0.75 in. or larger (screening thresholds) at the address.
- The free Address Lookup lists NWS warnings, storm reports and NOAA observations near the address — free South Burlington wind history and free South Burlington hail history.
- A complete Weather Report for $2.99 covers every qualifying storm date at one address over the last 2 years.
All values are estimates from public NOAA data under our published methodology (see Limitations).
For roofers, adjusters, and claim attorneys: the professional tools add statewide hail and wind swath maps, the Zone Canvas Tool, and Audit Reports with the evidence and arithmetic — see how roofing contractors and insurance claim attorneys use them.
Sources: NWS alerts (api.weather.gov) · NWS Local Storm Reports via the Iowa Environmental Mesonet · ASOS/AWOS station gusts via the Iowa Environmental Mesonet · NOAA NCEI Storm Events Database · every StormAuditor data source.
Free South Burlington storm data download
The South Burlington storm records for the last 12 months download free, free to reuse under the data license: download CSV · JSON at https://www.stormauditor.com/downloads/storm-data/vt/south-burlington.json.
- Coverage: every wind and hail record within about 25 miles of South Burlington (including the parts of New York inside that circle) or recorded for Chittenden County, with dates, counties, event types, measured gusts and hail sizes.
- Rows: each source record before consolidation, including every NWS warning product and smaller storm reports, so the row count differs from the event counts above. The file holds Vermont records only; the counts above also include the neighboring-state records inside the 25-mile circle.
- Statewide files are on the Vermont storm data page.
Nearby city storm pages:
Guides for reading this data
Cite or link to this data — free
Free to quote, summarize, reuse, and link — for bloggers, journalists, researchers, contractors, and AI writing tools. No permission or credit required. A ready-made citation and link are below if they help. Terms: StormAuditor data & content license.
Citation: StormAuditor. "South Burlington, VT Hail & Wind Storm History." Updated August 23, 2026. https://www.stormauditor.com/storm-data/vt/south-burlington
HTML link: <a href="https://www.stormauditor.com/storm-data/vt/south-burlington">South Burlington, VT Hail & Wind Storm History — StormAuditor</a>
About this page: built by Storm Auditor LLC from public NOAA/NWS records — deduplicated warnings, storm reports, station measurements, and official records on a rolling 12-month window, under the published methodology. See the StormAuditor Editorial Team for how content is produced.
Data last refreshed October 7, 2026. Event counts cover wind and hail (warning products, and storm reports from 50 mph or 0.75 in.); flood activity and Special Weather Statements are not counted here.