HailEvidence → hail history → Denison, IA
Denison, IA 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 Denison city centroid, 1950 to present.
Hail by year — last 15 years
| Year | Hail events ≤ 10 mi | Largest hail |
|---|---|---|
| 2026 | 0 | — |
| 2025 | 0 | — |
| 2024 | 2 | 2.50" (tennis ball) |
| 2023 | 0 | — |
| 2022 | 0 | — |
| 2021 | 1 | 1.00" (quarter) |
| 2020 | 0 | — |
| 2019 | 0 | — |
| 2018 | 3 | 1.25" (half dollar) |
| 2017 | 0 | — |
| 2016 | 3 | 0.88" (nickel) |
| 2015 | 0 | — |
| 2014 | 2 | 1.00" (quarter) |
| 2013 | 1 | 1.00" (quarter) |
| 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
- 103 thunderstorm-wind events, strongest 87 mph, most recent 2025-03-14.
- 14 tornado events, most recent 2023-04-19.
Most recent recorded events
| Date | Type | Magnitude | Distance |
|---|---|---|---|
| 2025-03-14 | Thunderstorm Wind | 59 mph | 2.3 mi |
| 2024-07-15 | Hail | 2.50" | 8.4 mi |
| 2024-07-15 | Hail | 0.75" | 8.4 mi |
| 2023-08-05 | Thunderstorm Wind | 58 mph | 3.2 mi |
| 2023-04-19 | Tornado | EFU | 7.6 mi |
| 2022-07-23 | Thunderstorm Wind | 69 mph | 0.5 mi |
| 2022-07-11 | Thunderstorm Wind | 69 mph | 2.3 mi |
| 2022-07-11 | Thunderstorm Wind | 66 mph | 0.3 mi |
| 2022-05-19 | Thunderstorm Wind | 63 mph | 2.3 mi |
| 2021-12-15 | Thunderstorm Wind | 81 mph | 3.3 mi |
2024-07-15: “Forward from broadcast media, with time estimated by radar.”
2024-07-15: “Trained spotter report of 0.75-inch hail.”
2023-08-05: “Quarter sized hail reported along with a tree down on Highway 59 blocking traffic in both directions.”
Disputing a claim at a Denison address?
This page covers the city. A claim dispute needs the record around your address: every NWS-recorded event within 1, 3 and 10 miles, the disputed date highlighted, citations formatted for an insurance appeal.
Verify an address — $29source: NOAA NCEI Storm Events computed 2026-06-12