Hail map for Janesville, WI — August 16, 2025
NOAA radar detected hail up to 2.00″ — hen egg size — within 5 miles of Janesville on August 16, 2025.
- Max hail size
- 2.00″
- hen egg
- Impact rating
- 7/10
- from stone size
- Size bands over the city
- 3
- distinct radar bands
- Reached the ground
- 70%
- NOAA POSH probability
- Measured on the ground
- 1.50″
- 1.7 mi away · Storm Chaser
NOAA's Probability of Severe Hail peaked at 70% over Janesville that day — high: around even odds of 1″ hail reaching the ground. It is a separate model from the size estimate above: one asks how big the stones were in the storm, the other asks whether they made it down.
Sizes come from NOAA MRMS radar (MESH), which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.
Work Janesville on the live hail map
- The whole state around Janesville, with this swath already on it
- Three years of hail swaths, filterable by stone size
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This page covers Janesville as a whole. Check your own address to see every storm on record for your roof — the date and the stone size for each one — and we'll email you the full report to keep.
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Other towns hit on August 16, 2025
Other hail dates for Janesville
Every storm over Janesville →What people on the ground measured in Janesville, WI on August 16, 2025
7 reports filed with the National Weather Service. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.
- 1.50″ half dollar size Storm Chaser2 W Janesville, WI · 1.7 mi away2:20 PM CDTRock County
Social media report from local storm chaser of the size of ping pong balls on the west side of Janesville. Time estimated from radar.
- 1.50″ half dollar size Public1 N Clinton, WI · 10.9 mi away2:40 PM CDTRock County
Image of ping-pong ball sized hail from a social media report, with a quarter for scale.
- 1.00″ quarter size Public1 NNW Janesville, WI · 1.2 mi away2:22 PM CDTRock County
Public Facebook report via video of many hailstones shredding leaves off a backyard tree; size estimated. Time estimated by radar.
- 1.00″ quarter size Public2 NW Janesville, WI · 2.2 mi away2:20 PM CDTRock County
Report from mPING: Quarter (1.00 in.).
- 1.00″ quarter size Public3 SW Janesville, WI · 2.5 mi away2:21 PM CDTRock County
Report from mPING: Quarter (1.00 in.).
- 1.00″ quarter size Public3 NE Janesville, WI · 2.7 mi away2:25 PM CDTRock County
Report from mPING: Quarter (1.00 in.).
- 1.00″ quarter size PublicClinton, WI · 11.7 mi away2:40 PM CDTRock County
Report from mPING: Quarter (1.00 in.).
Reports come from the National Weather Service Local Storm Report feed, ingested every 15 minutes. A report records where the observer was, not the full extent of the swath — treat it as evidence about the storm, not about any one roof.
Janesville hail on August 16, 2025
NOAA radar estimated stones up to 2.00 inches — hen egg size — within about 5 miles of Janesville that day, across 3 distinct size bands. Sizes vary street to street inside a single swath.