◆ HARTFORD, WI HAIL HISTORY · WASHINGTON COUNTY
Hartford, WI hail history & hail map
Hartford, Wisconsin has had 6 hail events in the past 5 years, with hail up to 1.50″ (Ping Pong Ball). Most recent: Sep 4, 2026. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
6Hail events in the past 5 years
1.50″Largest recorded hail · Ping Pong Ball
1.50″Largest ground report (within 3 mi)
1.00″Largest radar-estimated hail

Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Hartford, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Hartford
| Date | Peak hail | Sources |
|---|---|---|
| Sep 4, 2026 | 0.75″ Penny | Radar 0.75″ |
| Jun 16, 2026 | 0.38″ Small | 1 ground report (max 0.38″) |
| May 15, 2025 | 1.25″ Half Dollar | 3 ground reports (max 1.25″) |
| Jun 25, 2024 | 0.88″ Nickel | 1 ground report (max 0.88″) |
| Apr 19, 2023 | 1.50″ Ping Pong Ball | 2 ground reports (max 1.50″) |
| Jul 24, 2022 | 1.00″ Quarter | Radar 1.00″ |
More Wisconsin hail history
All Wisconsin cities & hail days →
Events count days with NOAA MRMS radar hail over Hartford (43.300, -88.370) or an NWS / CoCoRaHS hail report within 3 miles. Data window: NOAA MRMS radar hail swaths Oct 2021 – Nov 2026; NWS / NCEI Storm Events reports Nov 2024 – Jul 2026; CoCoRaHS volunteer reports Oct 2021 – present. Radar hail sizes are estimates, not ground truth; hail at any single address can differ.