HailEvidence → hail history → Knoxville, IA
Knoxville, 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 Knoxville city centroid, 1950 to present.
Hail by year — last 15 years
| Year | Hail events ≤ 10 mi | Largest hail |
|---|---|---|
| 2026 | 0 | — |
| 2025 | 1 | 1.00" (quarter) |
| 2024 | 10 | 1.25" (half dollar) |
| 2023 | 10 | 1.50" (ping pong ball) |
| 2022 | 1 | 1.00" (quarter) |
| 2021 | 7 | 2.50" (tennis ball) |
| 2020 | 1 | 1.00" (quarter) |
| 2019 | 2 | 1.00" (quarter) |
| 2018 | 2 | 0.88" (nickel) |
| 2017 | 14 | 2.75" (baseball) |
| 2016 | 0 | — |
| 2015 | 4 | 4.00" (softball) |
| 2014 | 1 | 0.75" (penny) |
| 2013 | 2 | 1.75" (golf ball) |
| 2012 | 2 | 0.88" (nickel) |
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
- 151 thunderstorm-wind events, strongest 100 mph, most recent 2025-03-14.
- 20 tornado events, most recent 2024-05-07.
Most recent recorded events
| Date | Type | Magnitude | Distance |
|---|---|---|---|
| 2025-05-19 | Hail | 1.00" | 2.8 mi |
| 2025-03-14 | Thunderstorm Wind | 70 mph | 0.2 mi |
| 2024-10-04 | Hail | 1.00" | 7.8 mi |
| 2024-10-04 | Hail | 1.00" | 4.7 mi |
| 2024-10-04 | Hail | 0.88" | 8.7 mi |
| 2024-07-30 | Thunderstorm Wind | 63 mph | 9.5 mi |
| 2024-07-30 | Hail | 0.75" | 4.9 mi |
| 2024-07-30 | Thunderstorm Wind | 58 mph | 9.3 mi |
| 2024-07-30 | Hail | 1.00" | 7.6 mi |
| 2024-07-30 | Hail | 1.25" | 9.7 mi |
2025-03-14: “Power pole snapped off in Knoxville. Time estimated.”
2024-10-04: “Relayed by local radio. Time estimated by radio.”
2024-10-04: “Relayed by local radio. Time estimated by radar.”
Disputing a claim at a Knoxville 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