◆ COTTAGE GROVE ARPT, WI HAIL HISTORY · DANE COUNTY
Cottage Grove Arpt, WI hail history & hail map
Cottage Grove Arpt, Wisconsin has had 4 hail events in the past 5 years, with hail up to 2.50″ (Tennis Ball). Most recent: Apr 14, 2026. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
4Hail events in the past 5 years
2.50″Largest recorded hail · Tennis Ball
2.50″Largest ground report (within 3 mi)
2.25″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Cottage Grove Arpt, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Cottage Grove Arpt
| Date | Peak hail | Sources |
|---|---|---|
| Apr 14, 2026 | 2.50″ Tennis Ball | Radar 2.25″ · 3 ground reports (max 2.50″) |
| Nov 4, 2022 | 1.00″ Quarter | 1 ground report (max 1.00″) |
| Sep 20, 2022 | 0.88″ Nickel | 1 ground report (max 0.88″) |
| Jun 13, 2022 | 2.00″ Golf Ball | Radar 2.00″ · 1 ground report (max 1.25″) |
More Wisconsin hail history
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Events count days with NOAA MRMS radar hail over Cottage Grove Arpt (43.120, -89.200) 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.