Hail & Wind Storms in Stamford, CT — Latest Dates and Sizes
Hail and wind activity within ~25 miles of Stamford, Connecticut 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 Stamford
- Last reported hail (0.75 in.+, screening): August 27, 2026 — 1.00 in. reported 22.7 mi N of Stamford (1 E Danbury), NWS Local Storm Report.
- Last wind gust 45 mph+ (screening): September 27, 2026 — 55 mph measured at the Bridgeport/Sikorsky station (22.4 mi E of Stamford), ASOS weather station.
- 2026 so far: 3 hail days and 13 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 |
|---|---|---|
| September 27, 2026 | — | 55 mph measured |
| September 26, 2026 | — | 66 mph measured (New York) |
| August 27, 2026 | 1.00 in. reported | — |
| August 7, 2026 | 1.00 in. reported (New York) | 54 mph measured (New York) |
| July 21, 2026 | — | 57 mph measured (New York) |
| July 4, 2026 | — | 75 mph measured (New York) |
| June 11, 2026 | — | 52 mph measured |
| June 6, 2026 | — | 64 mph measured (New York) |
| May 20, 2026 | 0.75 in. reported (New York) | — |
| March 17, 2026 | — | 54 mph measured |
Was your address hit on September 27, 2026? Check any address free with the Free Report Snapshot — a YES/NO estimate at the screening thresholds.
Stamford storm facts
- StormAuditor's analysis of NOAA and National Weather Service records found 75 wind and hail events, NWS warning products included, within 25 miles of Stamford, Connecticut (including the parts of New Jersey and New York inside that circle) or recorded for Fairfield County in the 12 months ending October 8, 2026 (59 wind, 16 hail).
- The strongest gust within 25 miles of Stamford in the last 12 months was 75 mph, measured 13.2 mi S of Stamford (2 N Glen Cove, New York) on July 4, 2026 (NWS Local Storm Report; storm reports and station gusts only, warnings excluded).
- The largest hail reported within 25 miles of Stamford in the last 12 months was 1.00 in., 22.7 mi N of Stamford (1 E Danbury) on August 27, 2026 (NWS Local Storm Report).
- The busiest days by event count near Stamford were August 7, 2026 and December 19, 2025, with 9 events each.
- Fairfield County alone recorded 36 of those wind and hail events (25 wind, 11 hail); the Connecticut page ranks counties by events of every type, floods and Special Weather Statements included.
Stamford, Connecticut storm history at a glance (last 12 months)
This free weather history for Stamford — home to about 140,000 residents — draws on StormAuditor's consolidated public record: 75 wind and hail events within 25 miles of Stamford (including the parts of New Jersey and New York inside that circle) or recorded for Fairfield County in the trailing 12 months — 59 wind and 16 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 Stamford 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.
- August 7, 2026 — 9 events incl. warnings · 4 wind · 5 hail
- December 19, 2025 — 9 events incl. warnings · 8 wind · 1 hail
- July 21, 2026 — 6 events incl. warnings · 5 wind · 1 hail
- July 4, 2026 — 6 events incl. warnings · 5 wind · 1 hail
- June 6, 2026 — 6 events incl. warnings · 5 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 Stamford 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 Stamford reaches into New Jersey and New York. Values marked with another state's name come from there: they count for Stamford but not on the Connecticut state page, which counts reports inside Connecticut 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 Stamford or recorded for Fairfield 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 Stamford or in Fairfield 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.
Stamford hail and wind history in NOAA NCEI records, 2010–Oct. 2025
This section covers January 1, 2010 through October 7, 2025. Storms from October 8, 2025 on are in the 12-month summary above, so no date is counted in both.
The National Centers for Environmental Information logged 187 storm days within 25 miles of Stamford or in Fairfield County in this period — 938 NCEI Storm Events entries in all. Thunderstorm wind outnumbers hail about 5.4 to 1 here: 787 wind reports against 145 hail reports.
The most storm days came in 2012, with 18; the fewest in a full year was 6, in 2015. Across 2022–2024, the area averaged 11 storm days a year, below the 15-year average of 12.
On August 1, 2011, 3.00 in. (teacup size) hail was reported in Nassau County, New York — the largest in these records for this area. Hail of 2 inches or more appears in only one year of this record, 2011. The strongest measured thunderstorm gust was 78 mph on September 1, 2021 in Suffolk County, New York. NCEI also lists 6 tornado entries for the area — one entry per county a tornado crossed.
July is the peak month for both hazards, with 28% of all hail reports. December through February accounts for 7 storm days.
- Average: 12 storm days a year (2010–2024)
- July and August: 54% of all hail reports
- Most hail reports in one year: 40 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 | 14 | 85 | 2 | 13 | 1.75 in. | 74 mph |
| 2011 | 40 | 54 | 0 | 12 | 3.00 in. | — |
| 2012 | 15 | 49 | 0 | 18 | 1.00 in. | 70 mph |
| 2013 | 1 | 38 | 1 | 13 | 0.88 in. | 64 mph |
| 2014 | 3 | 18 | 0 | 9 | 1.75 in. | — |
| 2015 | 7 | 31 | 0 | 6 | 1.75 in. | 68 mph |
| 2016 | 0 | 35 | 0 | 11 | — | 67 mph |
| 2017 | 3 | 15 | 0 | 7 | 1.75 in. | — |
| 2018 | 5 | 76 | 2 | 14 | 1.00 in. | 68 mph |
| 2019 | 6 | 55 | 0 | 14 | 1.25 in. | 67 mph |
| 2020 | 5 | 55 | 1 | 17 | 1.00 in. | 71 mph |
| 2021 | 6 | 56 | 0 | 12 | 1.00 in. | 78 mph |
| 2022 | 12 | 46 | 0 | 9 | 1.50 in. | 64 mph |
| 2023 | 20 | 72 | 0 | 10 | 1.50 in. | 64 mph |
| 2024 | 8 | 82 | 0 | 14 | 1.50 in. | 62 mph |
| 2025 through Oct. 7 | 0 | 20 | 0 | 8 | — | — |
Download this history: CSV · JSON at https://www.stormauditor.com/downloads/storm-history/ct/stamford.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).
Stamford storm history questions, 2010–Oct. 2025
How big did hail get in Stamford, 2010–Oct. 2025?
3.00 in., teacup size, reported on August 1, 2011 in Nassau County, New York, per NCEI.
Which year had the most storm days near Stamford, 2010–Oct. 2025?
2012, with 18 storm days (15 hail reports, 49 thunderstorm wind reports). The 15-year average is 12 storm days.
How many hail reports does Stamford see in a typical year?
About 9.7 hail reports a year (2010–2024 average), with 1-inch or larger hail in 13 of 15 years. Thunderstorm wind averages 51 reports a year.
What month has the most hail near Stamford?
July has the most hail reports (40, 2010–Oct. 2025), followed by August (39) and June (37).
What is the strongest measured thunderstorm gust near Stamford, 2010–Oct. 2025?
78 mph, measured on September 1, 2021 in Suffolk County, New York. 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.
Stamford hail map and wind map
Researching hail or wind in Stamford? The Hail Explorer and Wind Explorer map radar-derived hail swaths and peak-gust wind swaths across Connecticut, including the Stamford metro: pick any storm date and see how estimated hail size and gust bands tracked through Fairfield 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 Stamford 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 Stamford 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 Stamford wind history and free Stamford 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 Stamford storm data download
The Stamford 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/ct/stamford.json.
- Coverage: every wind and hail record within about 25 miles of Stamford (including the parts of New Jersey and New York inside that circle) or recorded for Fairfield 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 Connecticut records only; the counts above also include the neighboring-state records inside the 25-mile circle.
- Statewide files are on the Connecticut storm data page.
Nearby city storm pages:
- Yonkers, NY hail & wind history
- Bridgeport hail & wind history
- Paterson, NJ hail & wind history
- New York, NY hail & wind history
- New Haven hail & wind history
- Jersey City, NJ hail & wind history
- Connecticut statewide storm data
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. "Stamford, CT Hail & Wind Storm History." Updated September 27, 2026. https://www.stormauditor.com/storm-data/ct/stamford
HTML link: <a href="https://www.stormauditor.com/storm-data/ct/stamford">Stamford, CT 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 8, 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.