HailEvidence → hail history → O'Fallon, IL
O'Fallon, IL hail history
Every figure below is from the NOAA NCEI Storm Events Database — the official NWS record — counting events recorded within 10 miles of the O'Fallon city centroid, 1950 to present.
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Hail by year — last 15 years
| Year | Hail events ≤ 10 mi | Largest hail |
|---|---|---|
| 2026 | 1 | 1.00" (quarter) |
| 2025 | 18 | 1.75" (golf ball) |
| 2024 | 3 | 1.75" (golf ball) |
| 2023 | 4 | 1.75" (golf ball) |
| 2022 | 1 | 1.00" (quarter) |
| 2021 | 1 | 1.00" (quarter) |
| 2020 | 0 | — |
| 2019 | 6 | 2.00" (hen egg) |
| 2018 | 2 | 1.50" (ping pong ball) |
| 2017 | 8 | 2.00" (hen egg) |
| 2016 | 3 | 1.75" (golf ball) |
| 2015 | 2 | 1.00" (quarter) |
| 2014 | 4 | 1.75" (golf ball) |
| 2013 | 2 | 1.00" (quarter) |
| 2012 | 15 | 3.50" (tea cup) |
Note: the current and prior year reflect the latest NCEI compile and grow as NWS finalizes reports; same-day activity appears on this site's storm-day pages before it reaches this table.
Wind and tornado record
- 276 thunderstorm-wind events, strongest 104 mph, most recent 2026-04-27.
- 36 tornado events, most recent 2026-04-27.
Most recent recorded events
| Date | Type | Magnitude | Distance |
|---|---|---|---|
| 2026-04-27 | Hail | 1.00" | 8.3 mi |
| 2026-04-27 | Thunderstorm Wind | 58 mph | 7.1 mi |
| 2026-04-27 | Tornado | EF1 | 6.3 mi |
| 2026-03-15 | Thunderstorm Wind | 60 mph | 8.8 mi |
| 2025-07-06 | Thunderstorm Wind | 69 mph | 5.7 mi |
| 2025-07-06 | Thunderstorm Wind | 74 mph | 6.8 mi |
| 2025-05-16 | Thunderstorm Wind | 69 mph | 6.7 mi |
| 2025-05-16 | Thunderstorm Wind | 58 mph | 10 mi |
| 2025-04-20 | Thunderstorm Wind | 69 mph | 7.7 mi |
| 2025-04-02 | Thunderstorm Wind | 60 mph | 8 mi |
2026-04-27: “Thunderstorm winds blew a tree onto a home 2 miles southeast of Belleville. Three individuals sustained injuries. Near Swansea and at Scott Air Force Base, winds downed large tree limbs. A report of an estimated 55 mph wind gust was reported in Swansea, but winds were likely stronger based on the da”
2026-04-27: “A tornado touched down just east of Shiloh on Route 4 and just north of I-64 where it broke multiple power poles before continuing east-northeast. Along its path it damaged mostly trees, but did collapse the walls of one farm outbuilding and remove several shingles from one home. The tornado then co”
2026-03-15: “A TV meteorologist noted several gusts over 60 mph in his station's Storm Runner vehicle.”
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Address lookup by the U.S. Census Bureau geocoder. Records: NOAA NCEI Storm Events (final) plus SPC preliminary reports for storms newer than the latest compile — see methodology.
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Nearby hail history
source: NOAA NCEI Storm Events computed 2026-08-09