HailEvidence → hail history → Diagonal, IA
Diagonal, 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 Diagonal city centroid, 1950 to present.
Hail by year — last 15 years
| Year | Hail events ≤ 10 mi | Largest hail |
|---|---|---|
| 2026 | 0 | — |
| 2025 | 0 | — |
| 2024 | 2 | 3.00" (tea cup) |
| 2023 | 3 | 1.00" (quarter) |
| 2022 | 0 | — |
| 2021 | 1 | 1.50" (ping pong ball) |
| 2020 | 1 | 1.00" (quarter) |
| 2019 | 2 | 1.00" (quarter) |
| 2018 | 1 | 1.00" (quarter) |
| 2017 | 0 | — |
| 2016 | 0 | — |
| 2015 | 0 | — |
| 2014 | 6 | 2.00" (hen egg) |
| 2013 | 1 | 1.00" (quarter) |
| 2012 | 2 | 1.00" (quarter) |
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
- 60 thunderstorm-wind events, strongest 96 mph, most recent 2025-04-17.
- 18 tornado events, most recent 2025-04-17.
Most recent recorded events
| Date | Type | Magnitude | Distance |
|---|---|---|---|
| 2025-04-17 | Thunderstorm Wind | 76 mph | 8.2 mi |
| 2025-04-17 | Tornado | EF1 | 9.1 mi |
| 2025-04-02 | Thunderstorm Wind | 61 mph | 8.4 mi |
| 2024-10-30 | Hail | 0.88" | 7.8 mi |
| 2024-04-26 | Hail | 3.00" | 8.8 mi |
| 2024-04-26 | Tornado | EF2 | 3.2 mi |
| 2023-07-17 | Hail | 1.00" | 8.8 mi |
| 2023-06-17 | Hail | 0.75" | 6.7 mi |
| 2023-04-19 | Hail | 1.00" | 8.5 mi |
| 2021-12-15 | Thunderstorm Wind | 64 mph | 9.1 mi |
2025-04-17: “Spotter reported a lot of blowing dust with the gusty winds.”
2025-04-17: “The tornado developed in southwest Union county and tracked through rural portions of the county. Four properties reported damage, ranging from damage to outbuildings to shingle damage to a home.”
2025-04-02: “Gust from personal weather station. Blinding rain was also reported.”
Disputing a claim at a Diagonal 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