Hail Swath Map Preview
The Janesville, WI hail swath map preview was last reviewed on August 28, 2026 and shows mapped hail estimates up to 2.25". There are 34 public hail reports, 2 public wind reports, and 0 nearby tornado reports listed for the April 4, 2023 event.
View the April 4, 2023 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 April 4, 2023 hail swath map for Janesville, WI covers approximately 2,015 square miles and includes an estimated 491,235 people inside the mapped footprint. The largest mapped area is in the 0.50-0.75" hail band, covering 741 square miles. The highest estimated population exposure is in the 0.50-0.75" hail band with 215,399 people.
| Mapped Hail Band | Impact Area | Population |
|---|---|---|
| < 0.50" | 690 sq mi | 170,865 |
| 0.50-0.75" | 741 sq mi | 215,399 |
| 0.75-1.00" | 286 sq mi | 55,603 |
| 1.00-1.25" | 162 sq mi | 27,559 |
| 1.25-1.50" | 71 sq mi | 12,841 |
| 1.50-1.75" | 48 sq mi | 8,485 |
| 1.75-2.00" | 15 sq mi | 383 |
| 2.00-2.25" | 2 sq mi | 57 |
| 2.25-2.50" | 2 sq mi | 43 |
Get a free Hail Report by ZIP to see a more local hail signal and whether the April 4, 2023 Janesville, WI hail event may have reached your area.
Housing Exposure Inside the Janesville, WI Hail Swath Map
Inside the April 4, 2023 hail swath map area for Janesville, WI, HailGeeks estimates 187,934 single-family homes, 28,794 townhomes, and 58,374 multifamily properties within the mapped storm footprint. Single-family-home exposure is highest in the 0.50-0.75" hail band, with 82,047 single-family homes.
| Mapped Hail Band | Single-Family | Townhomes | Multifamily |
|---|---|---|---|
| < 0.50" | 64,671 | 8,514 | 26,389 |
| 0.50-0.75" | 82,047 | 13,501 | 23,669 |
| 0.75-1.00" | 21,094 | 3,902 | 5,424 |
| 1.00-1.25" | 11,202 | 1,544 | 1,646 |
| 1.25-1.50" | 5,287 | 465 | 732 |
| 1.50-1.75" | 3,319 | 866 | 494 |
| 1.75-2.00" | 238 | 2 | 19 |
| 2.00-2.25" | 44 | 0 | 1 |
| 2.25-2.50" | 32 | 0 | 0 |
Use this table to review housing exposure by hail band for the April 4, 2023 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 April 4, 2023 storm was mapped across 29 counties in the Janesville, WI region. Ogle County, IL had the strongest mapped signal, peaking at 2.25" with roughly 6,777 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 85 cities near Janesville, WI. Rockford, IL had the strongest mapped signal at 1.50", with an estimated 9,217 single-family homes exposed.
City cards show where the April 4, 2023 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 April 4, 2023 Janesville, WI hail map spans 126 ZIP codes. ZIP 61061 shows the strongest local signal, with mapped hail estimates up to 2.25" and an estimated single-family-home exposure of 2,089.
Check your ZIP in seconds to see whether hail activity from the April 4, 2023 Janesville, WI event was mapped near your area.
Public Hail, Wind, and Tornado Reports
Public storm report tables connected to the April 4, 2023 hail map for Janesville, WI currently list 34 public hail reports, 2 public wind reports, and 0 tornado reports.
| Date & Time | Hail Size | City | State | Description |
|---|---|---|---|---|
April 4, 2023 11:35 AM CT |
1.25 in | Milledgeville | IL | No National Weather Service description provided. |
April 4, 2023 11:35 AM CT |
1.00 in | Milledgeville | IL | PEA TO QUARTERS. |
April 4, 2023 11:57 AM CT |
1.50 in | 1 E Polo | IL | RELAYED VIA SPOTTER NETWORK. |
April 4, 2023 12:17 PM CT |
1.50 in | 2 E Oregon | IL | OGLE COUNTY EM REPORTS PING PONG BALL HAIL NEAR IL-64 AND BLACKHAWK ROAD EAST OF OREGON. |
April 4, 2023 12:33 PM CT |
1.25 in | Davis Junction | IL | TIME ESTIMATED BY RADAR. |
April 4, 2023 1:00 PM CT |
1.50 in | Rockton | IL | No National Weather Service description provided. |
April 4, 2023 1:14 PM CT |
1.75 in | 1 ESE Campton Hills | IL | GOLD BALL HAIL NEAR IL64 AND DEAN. TIME ESTIMATED BY RADAR. |
April 4, 2023 1:18 PM CT |
1.75 in | 1 ENE Hampshire | IL | No National Weather Service description provided. |
April 4, 2023 1:20 PM CT |
1.00 in | 5 WNW Machesney Park | IL | REPORT FROM MPING: QUARTER (1.00 IN.). |
April 4, 2023 1:21 PM CT |
1.25 in | 1 NW St. Charles | IL | No National Weather Service description provided. |
April 4, 2023 1:29 PM CT |
1.00 in | Rockton | IL | No National Weather Service description provided. |
April 4, 2023 1:31 PM CT |
1.00 in | 1 E Algonquin | IL | No National Weather Service description provided. |
April 4, 2023 1:39 PM CT |
1.00 in | South Beloit | IL | No National Weather Service description provided. |
April 4, 2023 1:50 PM CT |
1.75 in | 2 WNW Bartlett | IL | GOLFBALL HAIL REPORTED NEAR IVORY LANE AND SPAULDING ROAD. TIME ESTIMATED BY RADAR. |
April 4, 2023 1:51 PM CT |
1.00 in | Bartlett | IL | TIME ESTIMATED BY RADAR. |
April 4, 2023 2:11 PM CT |
1.00 in | 2 NE Roscoe | IL | VIA TWITTER. |
April 4, 2023 2:12 PM CT |
1.50 in | 1 W Arlington Heights | IL | No National Weather Service description provided. |
April 4, 2023 2:18 PM CT |
1.75 in | 1 ENE Palatine | IL | MULTIPLE REPORTS OF HAIL QUARTER TO GOLF BALL SIZE IN PALATINE. RELAYED VIA MPING. |
April 4, 2023 2:18 PM CT |
1.50 in | 1 E Palatine | IL | ALMOST GOLF BALL SIZE. NEAR PALATINE AND ROHLWING ROADS. HAIL ENDED. |
April 4, 2023 2:28 PM CT |
1.00 in | 1 S Lake Geneva | WI | RELAYED VIA SHERIFFS OFFICE. TIME EST BY RADAR. |
April 4, 2023 2:40 PM CT |
1.00 in | Bohners Lake | WI | No National Weather Service description provided. |
April 4, 2023 9:23 PM CT |
1.75 in | 2 NE Plum River | IL | No National Weather Service description provided. |
April 4, 2023 9:37 PM CT |
1.75 in | 1 WSW Red Oak | IL | No National Weather Service description provided. |
April 4, 2023 9:40 PM CT |
1.75 in | 1 S Winslow | IL | No National Weather Service description provided. |
April 4, 2023 9:46 PM CT |
1.75 in | 3 NE Oneco | WI | No National Weather Service description provided. |
April 4, 2023 9:52 PM CT |
1.75 in | 3 E Monroe | WI | No National Weather Service description provided. |
April 4, 2023 10:00 PM CT |
1.25 in | 6 E Monroe | WI | No National Weather Service description provided. |
April 4, 2023 10:03 PM CT |
1.50 in | 4 NE Dodgeville | WI | No National Weather Service description provided. |
April 4, 2023 10:10 PM CT |
1.25 in | 4 E Brooklyn | WI | No National Weather Service description provided. |
April 4, 2023 10:17 PM CT |
1.25 in | 6 NE Evansville | WI | No National Weather Service description provided. |
April 4, 2023 10:34 PM CT |
1.50 in | 1 NE Rockdale | WI | No National Weather Service description provided. |
April 4, 2023 10:45 PM CT |
1.00 in | Fort Atkinson | WI | MULTIPLE REPORTS VIA SOCIAL MEDIA OF HAIL AROUND A QUARTER OF AN INCH AROUND THE FORT ATKINSON AREA. |
April 5, 2023 5:05 AM CT |
1.00 in | Nora | IL | HAIL COVERING THE DECK WITH THE LARGEST STONES AT 1 INCH. |
April 5, 2023 5:10 AM CT |
1.50 in | Nora | IL | No National Weather Service description provided. |
| Date & Time | Wind Speed | City | State | Description |
|---|---|---|---|---|
April 5, 2023 5:58 AM CT | 3 WSW Beloit | WI | NWS STORM SURVEY CONCLUDED THAT STRAIGHT LINE WINDS UP TO 80MPH CAUSED A PATH OF TREE DAMAGE FROM THE WEST SIDE OF BELOIT THROUGH THE EAST SIDE OF BELOIT. NUMEROUS LARGE TREES WERE UPROOTED IN A STARBURST PATTERN ALONG THE PATH. OTHER TREE LIMBS AND DEBRIS APPEARED TO HAVE BEEN PUSHED/TUMBLED RATHER THAN LOFTED. MAIN STRUCTURAL DAMAGE WAS TO A SET OF BLEACHERS AT BELOIT MEMORIAL HIGH SCHOOL AND SOUTHEAST OF THERE AT FAIRBANKS MORSE WHERE A WALL WAS PUSHED IN. | |
April 4, 2023 1:50 PM CT | 85 mph | 4 SSW Poplar Grove | IL | MEASURED ON PERSONAL WEATHER STATION KILPOPLA17. SEVERAL LARGE TREES IN THE AREA UPROOTED OR DAMAGED... FASCIA PEELED OFF OF HOUSES... AND A SHED BLOWN OFF OF ITS FOUNDATION. RELAYED VIA WREX. |
| 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 April 4, 2023 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 April 4, 2023 event. These related maps cover storm dates from Aug 19, 2022 through Nov 4, 2022, with mapped hail estimates ranging from 1.00" to 1.75". In this set, the strongest related map reached 1.75", and the most recent map shown is from Nov 4, 2022.
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 April 4, 2023 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 April 4, 2023 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 April 4, 2023 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 April 4, 2023 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 April 4, 2023 Janesville, WI hail event.