Hail Swath Map Preview
The Janesville, WI hail swath map preview was last reviewed on August 29, 2026 and shows mapped hail estimates up to 1.50". There are 2 public hail reports, 8 public wind reports, and 0 nearby tornado reports listed for the May 21, 2024 event.
View the May 21, 2024 Janesville, WI hail event on the free interactive hail map, then check a free Hail Report by ZIP to see a more local hail signal for your area.
Impact Area and Population for the Janesville, WI Hail Map
The May 21, 2024 hail swath map for Janesville, WI covers approximately 1,393 square miles and includes an estimated 236,969 people inside the mapped footprint. The largest mapped area is in the < 0.50" hail band, covering 739 square miles. The highest estimated population exposure is in the < 0.50" hail band with 136,523 people.
| Mapped Hail Band | Impact Area | Population |
|---|---|---|
| < 0.50" | 739 sq mi | 136,523 |
| 0.50-0.75" | 536 sq mi | 87,979 |
| 0.75-1.00" | 97 sq mi | 5,943 |
| 1.00-1.25" | 12 sq mi | 785 |
| 1.25-1.50" | 7 sq mi | 5,546 |
| 1.50-1.75" | 2 sq mi | 193 |
Get a free Hail Report by ZIP to see a more local hail signal and whether the May 21, 2024 Janesville, WI hail event may have reached your area.
Housing Exposure Inside the Janesville, WI Hail Swath Map
Inside the May 21, 2024 hail swath map area for Janesville, WI, HailGeeks estimates 82,817 single-family homes, 10,310 townhomes, and 47,733 multifamily properties within the mapped storm footprint. Single-family-home exposure is highest in the < 0.50" hail band, with 47,065 single-family homes.
| Mapped Hail Band | Single-Family | Townhomes | Multifamily |
|---|---|---|---|
| < 0.50" | 47,065 | 5,908 | 27,958 |
| 0.50-0.75" | 30,672 | 3,640 | 18,338 |
| 0.75-1.00" | 2,382 | 198 | 457 |
| 1.00-1.25" | 359 | 34 | 67 |
| 1.25-1.50" | 2,219 | 529 | 913 |
| 1.50-1.75" | 120 | 1 | 0 |
Use this table to review housing exposure by hail band for the May 21, 2024 Janesville, WI hail map. To check a specific property more closely, use a free Hail Report by Address.
Counties Inside the Janesville, WI Hail Map
Hail from the May 21, 2024 storm was mapped across 21 counties in the Janesville, WI region. Dane County, WI had the strongest mapped signal, peaking at 1.50" with roughly 38,284 single-family homes inside the swath.
County pages group every mapped hail event in the area. For a closer look, drop to the city or ZIP level below, or run a free Hail Report by Address.
Cities Inside the Janesville, WI Hail Map
Zooming in, the swath touched 33 cities near Janesville, WI. Stoughton, WI had the strongest mapped signal at 1.50", with an estimated 2,892 single-family homes exposed.
City cards show where the May 21, 2024 Janesville, WI hail activity was mapped, but your ZIP can show a closer local signal. Get a free Hail Report by ZIP, and if the signal looks meaningful, ask a local pro about a Remote Hail Inspection to see whether an on-site roof or exterior review may be worth scheduling.
ZIP Codes Inside the Janesville, WI Hail Swath Map
At the ZIP level, the May 21, 2024 Janesville, WI hail map spans 78 ZIP codes. ZIP 53589 shows the strongest local signal, with mapped hail estimates up to 1.50" and an estimated single-family-home exposure of 4,786.
Check your ZIP in seconds to see whether hail activity from the May 21, 2024 Janesville, WI event was mapped near your area.
Public Hail, Wind, and Tornado Reports
Public storm report tables connected to the May 21, 2024 hail map for Janesville, WI currently list 2 public hail reports, 8 public wind reports, and 0 tornado reports.
| Date & Time | Hail Size | City | State | Description |
|---|---|---|---|---|
May 21, 2024 12:43 PM CT |
1.50 in | 1 NNW Stoughton | WI | Size estimated from social media pic. Time estimated from radar. |
May 21, 2024 12:48 PM CT |
1.00 in | 3 NNE Stoughton | WI | Hail at least 1 inch in diameter via social media video. |
| Date & Time | Wind Speed | City | State | Description |
|---|---|---|---|---|
May 21, 2024 6:51 PM CT | Spring Green | WI | Few large branches and trees down in Spring Green. Report relayed via social media. Time estimated based on radar. | |
May 21, 2024 8:20 PM CT | 2 WSW Polo | IL | Large tree limb down blocking W. Milledgeville Rd. From social media... time estimated from Radar. | |
May 21, 2024 8:26 PM CT | Stillman Valley | IL | Power lines damaged near Stillman Valley causing numerous power outages. | |
May 21, 2024 8:38 PM CT | 2 WSW Cherry Valley | IL | A few powerlines down in SE Rockford and Cherry Valley. | |
May 21, 2024 8:41 PM CT | 2 ENE Rockford | IL | Report of 6 inch diameter branch downed on Brendenwood Road. Time estimated on radar. | |
May 21, 2024 8:43 PM CT | 4 NNW Shirland | IL | Power lines downed. Time estimated by radar. | |
May 21, 2024 8:43 PM CT | 1 SW Machesney Park | IL | Power lines downed in Loves Park and Machesney Park. Time estimated by radar. | |
May 21, 2024 8:44 PM CT | 3 W Rockton | IL | Tree damage reported west of Rockton. Relayed via mping. |
| Date & Time | Rating | City | State | Description |
|---|---|---|---|---|
| No public tornado reports are available for this event. | ||||
This table includes only public storm reports connected to the May 21, 2024 Janesville, WI storm event. When available, each report may include the time, size or magnitude, city, state, and a short description.
Related Hail Maps in the Janesville, WI Region
We found 6 more hail maps with reports from the same Janesville, WI region as the May 21, 2024 event. These related maps cover storm dates from Apr 16, 2024 through May 20, 2024, with mapped hail estimates ranging from 0.75" to 1.75". In this set, the strongest related map reached 1.75", and the most recent map shown is from May 20, 2024.
If none of these related Janesville, WI hail maps look close enough to your property, check a free Hail Report by Address. It reviews hail history for a specific location — not just the broader Janesville, WI region — so you can check whether hail activity may have reached your property.
Local Hail Review Options Near Janesville, WI
Not sure whether the May 21, 2024 Janesville, WI hail map matters for your property? Start with a free Hail Report by Address to see whether hail activity was mapped for that property. If the property signal looks meaningful, you can choose a local pro serving the Janesville, WI region and ask about a Remote Hail Inspection before deciding whether an on-site roof or exterior review is worth scheduling.
Check a specific property to see whether hail activity from the May 21, 2024 Janesville, WI event — or another recent hail event — may have been mapped at that address.
Find a roof or exterior pro serving the Janesville, WI region who can help you understand what the property hail signal may mean.
A participating local pro reviews property-level hail history remotely — not just the May 21, 2024 event — to help decide whether an on-site inspection may be worth scheduling.
A free Hail Report by Address and a Remote Hail Inspection can help you look beyond the May 21, 2024 hail map visuals alone. They do not confirm property damage and do not replace an on-site inspection for a property in the Janesville, WI region, but they can help you make a more informed next decision before anyone climbs on the roof.
Frequently Asked Questions
Common questions about the May 21, 2024 Janesville, WI hail event.