HailEvidence → hail history → Altoona, IA
Altoona, 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 Altoona city centroid, 1950 to present.
Hail by year — last 15 years
| Year | Hail events ≤ 10 mi | Largest hail |
|---|---|---|
| 2026 | 0 | — |
| 2025 | 3 | 1.00" (quarter) |
| 2024 | 10 | 1.25" (half dollar) |
| 2023 | 6 | 1.00" (quarter) |
| 2022 | 5 | 2.50" (tennis ball) |
| 2021 | 4 | 3.25" (tea cup) |
| 2020 | 3 | 1.00" (quarter) |
| 2019 | 9 | 2.75" (baseball) |
| 2018 | 9 | 2.00" (hen egg) |
| 2017 | 3 | 1.75" (golf ball) |
| 2016 | 7 | 1.50" (ping pong ball) |
| 2015 | 7 | 1.25" (half dollar) |
| 2014 | 4 | 1.50" (ping pong ball) |
| 2013 | 7 | 1.75" (golf ball) |
| 2012 | 8 | 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
- 319 thunderstorm-wind events, strongest 120 mph, most recent 2025-07-30.
- 39 tornado events, most recent 2024-06-25.
Most recent recorded events
| Date | Type | Magnitude | Distance |
|---|---|---|---|
| 2025-07-30 | Thunderstorm Wind | 64 mph | 5 mi |
| 2025-07-24 | Thunderstorm Wind | 63 mph | 3.4 mi |
| 2025-07-24 | Thunderstorm Wind | 61 mph | 8.9 mi |
| 2025-07-11 | Thunderstorm Wind | 70 mph | 0 mi |
| 2025-07-11 | Thunderstorm Wind | 60 mph | 5.4 mi |
| 2025-07-11 | Thunderstorm Wind | 67 mph | 8.9 mi |
| 2025-07-10 | Thunderstorm Wind | 74 mph | 9.2 mi |
| 2025-06-26 | Thunderstorm Wind | 61 mph | 9.5 mi |
| 2025-06-23 | Thunderstorm Wind | 62 mph | 2.4 mi |
| 2025-06-23 | Thunderstorm Wind | 64 mph | 2.1 mi |
2025-07-30: “Large hardwood tree uprooted and fell on home. Delayed Report. Time estimated from radar.”
2025-07-24: “Several large tree limbs down in town and small trees less than 6 inches in diameter. Some shingle damage. A microburst occurred over the northwest side of town.”
2025-07-24: “Peak wind gust from the RWIS mesonet station RAKI4 Ankeny.”
Disputing a claim at a Altoona 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