HailEvidence → hail history → Thornton, CO
Thornton, CO 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 Thornton city centroid, 1950 to present.
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Hail by year — last 15 years
| Year | Hail events ≤ 10 mi | Largest hail |
|---|---|---|
| 2026 | 0 | — |
| 2025 | 17 | 1.50" (ping pong ball) |
| 2024 | 40 | 2.75" (baseball) |
| 2023 | 17 | 1.75" (golf ball) |
| 2022 | 0 | — |
| 2021 | 20 | 1.75" (golf ball) |
| 2020 | 3 | 1.25" (half dollar) |
| 2019 | 19 | 2.00" (hen egg) |
| 2018 | 20 | 2.75" (baseball) |
| 2017 | 5 | 1.50" (ping pong ball) |
| 2016 | 4 | 1.00" (quarter) |
| 2015 | 2 | 1.00" (quarter) |
| 2014 | 8 | 1.50" (ping pong ball) |
| 2013 | 0 | — |
| 2012 | 0 | — |
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
- 86 thunderstorm-wind events, strongest 97 mph, most recent 2025-07-10.
- 44 tornado events, most recent 2022-07-29.
Most recent recorded events
| Date | Type | Magnitude | Distance |
|---|---|---|---|
| 2025-07-11 | Hail | 0.75" | 8.6 mi |
| 2025-07-10 | Thunderstorm Wind | 58 mph | 9.9 mi |
| 2025-07-10 | Thunderstorm Wind | 58 mph | 9.8 mi |
| 2025-07-10 | Thunderstorm Wind | 59 mph | 9.7 mi |
| 2025-07-08 | Thunderstorm Wind | 58 mph | 9.9 mi |
| 2025-07-08 | Thunderstorm Wind | 49 mph | 7.2 mi |
| 2025-06-17 | Hail | 0.75" | 4.4 mi |
| 2025-06-17 | Hail | 1.00" | 2.1 mi |
| 2025-06-17 | Hail | 1.00" | 1.4 mi |
| 2025-06-17 | Hail | 0.75" | 1.3 mi |
2025-07-10: “CDOT weather sensor I-70 and Washington Street.”
2025-07-10: “CDOT weather sensor at I-70 and York Street.”
2025-07-10: “Mesonet station CO205 Denver located at I-70 and Colorado Avenue.”
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This page covers the city. A claim is argued about one property, so start with the free address check — it counts the recorded events around your address, not the city centroid.
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Type a street address. We measure it against every hail
event the National Weather Service recorded in the last 10 years and show you how many fall
within 1, 3 and 10 miles — free, instantly, nothing stored. Rural property with no street address?
Enter coordinates as 44.05, -107.31.
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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source: NOAA NCEI Storm Events computed 2026-07-25