HailEvidence → hail history → Oconomowoc, WI
Oconomowoc, WI 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 Oconomowoc city centroid, 1950 to present.
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Hail by year — last 15 years
| Year | Hail events ≤ 10 mi | Largest hail |
|---|---|---|
| 2026 | 3 | 1.50" (ping pong ball) |
| 2025 | 10 | 2.50" (tennis ball) |
| 2024 | 7 | 1.50" (ping pong ball) |
| 2023 | 4 | 1.00" (quarter) |
| 2022 | 18 | 1.75" (golf ball) |
| 2021 | 2 | 1.00" (quarter) |
| 2020 | 2 | 1.00" (quarter) |
| 2019 | 0 | — |
| 2018 | 2 | 1.25" (half dollar) |
| 2017 | 4 | 1.00" (quarter) |
| 2016 | 0 | — |
| 2015 | 1 | 0.88" (nickel) |
| 2014 | 1 | 1.00" (quarter) |
| 2013 | 4 | 1.00" (quarter) |
| 2012 | 6 | 1.50" (ping pong ball) |
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
- 170 thunderstorm-wind events, strongest 81 mph, most recent 2026-04-14.
- 23 tornado events, most recent 2022-10-12.
Most recent recorded events
| Date | Type | Magnitude | Distance |
|---|---|---|---|
| 2026-04-14 | Thunderstorm Wind | 81 mph | 2.8 mi |
| 2026-04-14 | Hail | 1.00" | 1.8 mi |
| 2026-04-14 | Hail | 1.00" | 7.3 mi |
| 2026-04-14 | Hail | 1.50" | 9.9 mi |
| 2025-09-22 | Thunderstorm Wind | 58 mph | 5 mi |
| 2025-09-22 | Thunderstorm Wind | 58 mph | 5.9 mi |
| 2025-08-12 | Thunderstorm Wind | 60 mph | 8.1 mi |
| 2025-08-12 | Thunderstorm Wind | 64 mph | 4.8 mi |
| 2025-05-16 | Thunderstorm Wind | 66 mph | 2.5 mi |
| 2025-05-16 | Thunderstorm Wind | 58 mph | 0.3 mi |
2026-04-14: “A swath of scattered tree and powerline damage across the county, but with heavier concentrations of damage in some areas. There was widespread tree damage on the west side of Lake Okauchee, and also a concentration of uprooted and snapped trees, including some felled on homes, near North Prairie. A”
2026-04-14: “Public report of 1 inch diameter hail near Oconomowoc.”
2026-04-14: “Public report of 1 inch diameter hail in Hartland.”
Storm-day records for Oconomowoc — “did it hail on this date?”
Each recorded hail day in Oconomowoc has its own page with the official NWS reports for that date.
- Hail in Oconomowoc, WI on July 27, 2026 — up to 2.50"
Disputing a claim at a Oconomowoc address?
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. If you need the record itself in writing, that's the citable verification report — $29.
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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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Nearby hail history
source: NOAA NCEI Storm Events computed 2026-08-09