Hail & Wind Storms in Westminster, CO — Latest Dates and Sizes

Hail and wind activity within ~25 miles of Westminster, Colorado 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 Westminster

  • Last reported hail (0.75 in.+, screening): August 26, 2026 — 1.00 in. reported 24.1 mi SE of Westminster (Foxfield), SPC storm report.
  • Last wind gust 45 mph+ (screening): September 25, 2026 — 55 mph measured at the Denver/Centennial station (24.2 mi SE of Westminster) at 4:10 PM MDT, ASOS weather station.
  • 2026 so far: 9 hail days and 45 wind days within 25 miles (days with a storm report or station gust at the screening thresholds; warnings alone never count).
Recent storm days near Westminster, newest first (hail 0.75 in.+ or wind 45 mph+, screening; a linked date has a storm-date page; pages are published for the most significant days that met NWS severe criteria, so some severe days have no page)
DateLargest reported hailStrongest gust
September 25, 2026—55 mph measured
September 22, 2026—64 mph measured
September 19, 2026—52 mph measured
September 18, 2026—52 mph measured
September 6, 2026—59 mph measured
August 31, 2026—52 mph measured
August 30, 2026—60 mph measured
August 29, 2026—58 mph measured
August 26, 20261.00 in. reported—
August 22, 20261.25 in. reported53 mph measured

Was your address hit on September 25, 2026? Check any address free with the Free Report Snapshot — a YES/NO estimate at the screening thresholds.

Westminster, CO hail and wind storm history — Jefferson County on a Colorado map card

Westminster storm facts

  • StormAuditor's analysis of NOAA and National Weather Service records found 430 wind and hail events, NWS warning products included, within 25 miles of Westminster, Colorado or recorded for Jefferson County in the 12 months ending October 7, 2026 (364 wind, 66 hail).
  • The strongest gust within 25 miles of Westminster in the last 12 months was 112 mph, measured 13.5 mi NW of Westminster (3 NW Marshall) on December 19, 2025 (NWS Local Storm Report; storm reports and station gusts only, warnings excluded).
  • The largest hail reported within 25 miles of Westminster in the last 12 months was 1.75 in., 12.2 mi SW of Westminster (Golden) on June 8, 2026 (SPC storm report).
  • The busiest day by event count near Westminster was December 17, 2025, with 53 events.
  • Jefferson County alone recorded 116 of those wind and hail events (86 wind, 30 hail); the Colorado page ranks counties by events of every type, floods and Special Weather Statements included.

Westminster, Colorado storm history at a glance (last 12 months)

This free weather history for Westminster — home to about 120,000 residents — draws on StormAuditor's consolidated public record: 430 wind and hail events within 25 miles of Westminster or recorded for Jefferson County in the trailing 12 months — 364 wind and 66 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 Westminster 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.

Storm-day records for Westminster

Storm-date pages for the biggest days near Westminster: a report or station gust within 25 miles met NWS severe criteria (hail 1.00 in.+ or wind 58 mph+), with at least two separate observations. Not every storm day in the table above has a page. Each page lists the reports, station gusts and a free way to check one address:

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 Westminster 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.
  • 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 Westminster or recorded for Jefferson 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 Westminster or in Jefferson 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.

Westminster 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.

Bar chart of storm days per year near Westminster for 2010–Oct. 2025 in NOAA NCEI Storm Events records; the busiest year was 2023 with 26 storm days.
Westminster storm days by year, 2010–Oct. 2025 (NOAA NCEI Storm Events).

NOAA's Storm Events Database holds 1,267 NCEI Storm Events entries within 25 miles of Westminster or in Jefferson County for this period, on 245 separate storm days. Hail outnumbers thunderstorm wind here: 1,040 hail reports against 204 wind reports.

The largest hail in these records for this area was 3.00 in. (teacup size), reported on June 19, 2018 in Arapahoe County. Hail of 2 inches or more appears in 11 different years of this record, the latest being 2024. Measured thunderstorm gusts topped out at 79 mph (Denver County, July 22, 2019). NCEI also lists 23 tornado entries for the area — one entry per county a tornado crossed.

Hail and wind both peak in June, the month with 35% of the hail reports. None of these NCEI storm days fell in December through February.

Storm days ranged from 8 in 2012 and 2013 to 26 in 2023. Across 2022–2024, the area averaged 16 storm days a year, above the 15-year average of 15.

Westminster storm entries by year, 2010–Oct. 2025 (NOAA NCEI Storm Events)
YearHail reportsThunderstorm wind reportsTornado entriesStorm daysLargest hailStrongest measured gust
20106841132.75 in.62 mph
201142190192.00 in.75 mph
2012197182.00 in.68 mph
2013913281.75 in.76 mph
201480166252.00 in.77 mph
20155432131.50 in.60 mph
20164620132.00 in.74 mph
20174090102.75 in.62 mph
2018124170233.00 in.70 mph
201913162252.50 in.79 mph
202017560131.75 in.78 mph
20215651112.00 in.68 mph
20221674111.50 in.74 mph
2023169143262.50 in.68 mph
2024110100102.75 in.66 mph
2025 through Oct. 659161171.50 in.70 mph

Download this history: CSV · JSON at https://www.stormauditor.com/downloads/storm-history/co/westminster.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).

Westminster storm history questions, 2010–Oct. 2025

What is the largest hail reported near Westminster, 2010–Oct. 2025?

3.00 in., teacup size, reported on June 19, 2018 in Arapahoe County, per NCEI. Hail of 2 inches or more appears in 11 years of this record in all, most recently 2021, 2023 and 2024.

What was Westminster's most active storm year, 2010–Oct. 2025?

2023, with 26 storm days (169 hail reports, 14 thunderstorm wind reports, 3 tornado entries). The 15-year average is 15 storm days.

How often does Westminster get hail?

NCEI's records average 65 hail reports a year here over 2010–2024, alongside 13 thunderstorm wind reports. Hail of 1 inch or larger was reported in every one of those years.

When is hail season near Westminster?

June has the most hail reports (365, 2010–Oct. 2025), followed by May (330) and July (186).

How strong were measured thunderstorm winds in Westminster, 2010–Oct. 2025?

79 mph, measured on July 22, 2019 in Denver 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.

Westminster hail map and wind map

Researching hail or wind in Westminster? The Hail Explorer and Wind Explorer map radar-derived hail swaths and peak-gust wind swaths across Colorado, including the Westminster metro: pick any storm date and see how estimated hail size and gust bands tracked through Jefferson 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 Westminster 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 Westminster address:

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 Westminster storm data download

The Westminster 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/co/westminster.json.

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. "Westminster, CO Hail & Wind Storm History." Updated September 25, 2026. https://www.stormauditor.com/storm-data/co/westminster

HTML link: <a href="https://www.stormauditor.com/storm-data/co/westminster">Westminster, CO 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.