Hail & Wind Storms in St. Louis, MO — Latest Dates and Sizes
Hail and wind activity within ~25 miles of St. Louis, Missouri: the last 12 months from NWS warnings, storm reports, and station measurements, plus official NOAA records back to 2010.
Latest hail and wind near St. Louis
- Last reported hail (0.75 in.+, screening): June 25, 2026 — 0.75 in. reported 21.9 mi NW of St. Louis (Saint Peters), NWS Local Storm Report.
- Last wind gust 45 mph+ (screening): July 11, 2026 — 60 mph measured at the Cahokia/St Louis station (6.6 mi SE of St. Louis, Illinois), ASOS weather station.
- 2026 so far: 6 hail days and 12 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 |
|---|---|---|
| July 11, 2026 | — | 60 mph measured (Illinois) |
| July 10, 2026 | — | 63 mph reported |
| July 4, 2026 | — | 53 mph measured (Illinois) |
| June 25, 2026 | 0.75 in. reported | — |
| May 5, 2026 | — | 53 mph measured |
| May 4, 2026 | 0.75 in. reported (Illinois) | — |
| May 3, 2026 | 2.00 in. reported (Illinois) | — |
| April 27, 2026 | 2.00 in. reported (Illinois) | 60 mph reported |
| April 24, 2026 | — | 51 mph measured |
| April 17, 2026 | 1.00 in. reported | — |
Was your address hit on July 11, 2026? Check any address free with the Free Report Snapshot — a YES/NO estimate at the screening thresholds.
St. Louis storm facts
- StormAuditor's analysis of NOAA and National Weather Service records found 101 wind and hail events, NWS warning products included, within 25 miles of St. Louis, Missouri (including the parts of Illinois inside that circle) in the 12 months ending October 8, 2026 (42 wind, 59 hail).
- The strongest gust within 25 miles of St. Louis in the last 12 months was 67 mph, measured at the Alton/St Louis R station (20.6 mi NE of St. Louis, Illinois) on March 11, 2026 (ASOS weather station; storm reports and station gusts only, warnings excluded).
- The largest hail reported within 25 miles of St. Louis in the last 12 months was 2.00 in., 19.1 mi N of St. Louis (3 W Alton, Illinois) on May 3, 2026 (NWS Local Storm Report).
- The busiest day by event count near St. Louis was April 27, 2026, with 43 events.
St. Louis, Missouri storm history at a glance (last 12 months)
This free weather history for St. Louis — home to about 280,000 residents, an independent city (not part of St. Louis County) — draws on StormAuditor's consolidated public record: 101 wind and hail events within 25 miles of St. Louis (including the parts of Illinois inside that circle) in the trailing 12 months — 42 wind and 59 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 St. Louis 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.
- April 27, 2026 — 43 events incl. warnings · 9 wind · 34 hail · storm-date page: 39 storm reports
- April 17, 2026 — 14 events incl. warnings · 14 hail
- May 3, 2026 — 8 events incl. warnings · 8 hail · storm-date page: 9 storm reports
- December 28, 2025 — 6 events incl. warnings · 6 wind
- March 15, 2026 — 4 events incl. warnings · 3 wind · 1 hail
Storm-day records for St. Louis
Storm-date pages for the biggest days near St. Louis: 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 St. Louis 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 St. Louis reaches into Illinois. Values marked with that state's name come from there: they count for St. Louis but not on the Missouri state page, which counts reports inside Missouri 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 St. Louis, 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 St. Louis 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.
St. Louis 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.
Hail (702 reports) and thunderstorm wind (761) appear in nearly equal numbers. In all: 1,551 NCEI Storm Events entries within 25 miles of St. Louis, spread over 278 storm days.
Hail peaks in April (28% of all hail reports), while thunderstorm wind reports cluster in July. December through February accounts for 10 storm days.
The most storm days came in 2012 and 2019, with 26 each; the fewest in a full year was 8, in 2022. Across 2022–2024, the area averaged 12 storm days a year, below the 15-year average of 18. Storm days fell from an average of 22 a year in 2010–2014 to 12 in 2020–2024.
On May 25, 2011, 4.50 in. (softball size) hail was reported in St. Louis County — the largest in these records for this area. Hail of 2 inches or more appears in 11 different years of this record, the latest being 2025 through Oct. 7. The strongest measured thunderstorm gust was 84 mph on May 23, 2011 in Madison County, Illinois. NCEI also lists 88 tornado entries for the area — one entry per county a tornado crossed.
- Average: 18 storm days a year (2010–2024)
- April and May: 53% of all hail reports
- Most hail reports in one year: 184 in 2025 through Oct. 7
- Hail of 1 in. or larger reported in every full year, 2010–2024
| Year | Hail reports | Thunderstorm wind reports | Tornado entries | Storm days | Largest hail | Strongest measured gust |
|---|---|---|---|---|---|---|
| 2010 | 37 | 48 | 8 | 25 | 2.25 in. | 70 mph |
| 2011 | 100 | 62 | 13 | 22 | 4.50 in. | 84 mph |
| 2012 | 87 | 42 | 1 | 26 | 3.50 in. | 69 mph |
| 2013 | 18 | 44 | 5 | 15 | 1.75 in. | 75 mph |
| 2014 | 31 | 27 | 5 | 20 | 2.00 in. | 75 mph |
| 2015 | 17 | 30 | 0 | 18 | 1.75 in. | 72 mph |
| 2016 | 36 | 34 | 1 | 15 | 4.00 in. | 72 mph |
| 2017 | 32 | 36 | 1 | 17 | 3.00 in. | 71 mph |
| 2018 | 23 | 40 | 1 | 17 | 1.75 in. | 72 mph |
| 2019 | 21 | 41 | 2 | 26 | 2.00 in. | 66 mph |
| 2020 | 4 | 23 | 0 | 10 | 1.50 in. | 66 mph |
| 2021 | 16 | 74 | 8 | 15 | 2.00 in. | 77 mph |
| 2022 | 6 | 54 | 8 | 8 | 1.00 in. | 64 mph |
| 2023 | 62 | 130 | 12 | 20 | 3.00 in. | 79 mph |
| 2024 | 28 | 16 | 8 | 9 | 3.75 in. | 81 mph |
| 2025 through Oct. 7 | 184 | 60 | 15 | 15 | 2.50 in. | 64 mph |
Download this history: CSV · JSON at https://www.stormauditor.com/downloads/storm-history/mo/st-louis.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).
St. Louis storm history questions, 2010–Oct. 2025
How big did hail get in St. Louis, 2010–Oct. 2025?
4.50 in., softball size, reported on May 25, 2011 in St. Louis County, per NCEI. Hail of 2 inches or more appears in 11 years of this record in all, most recently 2023, 2024 and 2025 through Oct. 7.
Which year had the most storm days near St. Louis, 2010–Oct. 2025?
2012 and 2019 tied, with 26 storm days each. The 15-year average is 18 storm days.
How many hail reports does St. Louis see in a typical year?
About 35 hail reports a year (2010–2024 average), with 1-inch or larger hail reported every year. Thunderstorm wind averages 47 reports a year.
What month has the most hail near St. Louis?
April has the most hail reports (194, 2010–Oct. 2025), followed by May (180) and March (153).
What is the strongest measured thunderstorm gust near St. Louis, 2010–Oct. 2025?
84 mph, measured on May 23, 2011 in Madison County, Illinois. 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.
St. Louis hail map and wind map
Researching hail or wind in St. Louis? The Hail Explorer and Wind Explorer map radar-derived hail swaths and peak-gust wind swaths across Missouri, including the St. Louis metro: pick any storm date and see how estimated hail size and gust bands tracked through the St. Louis area. 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 St. Louis 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 St. Louis 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 St. Louis wind history and free St. Louis 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).
Working storm claims? Roofing contractors, public adjusters, and insurance adjusters work from this same public storm record with statewide hail and wind maps and per-address reports — see StormAuditor for professionals.
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 St. Louis storm data download
The St. Louis 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/mo/st-louis.json.
- Coverage: every wind and hail record within about 25 miles of St. Louis (including the parts of Illinois inside that circle), 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 Missouri records only; the counts above also include the neighboring-state records inside the 25-mile circle.
- Statewide files are on the Missouri storm data page.
Nearby city storm pages:
- Springfield, IL hail & wind history
- Cape Girardeau hail & wind history
- Columbia hail & wind history
- Sedalia hail & wind history
- Marshall hail & wind history
- Springfield hail & wind history
- Missouri 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. "St. Louis, MO Hail & Wind Storm History." Updated July 11, 2026. https://www.stormauditor.com/storm-data/mo/st-louis
HTML link: <a href="https://www.stormauditor.com/storm-data/mo/st-louis">St. Louis, MO 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.