Hail history for Janesville, Minnesota
NOAA hail reports in and within about 5 km (3 miles) of Janesville since 1981, with preliminary reports to November 3, 2026.
Readout · Janesville
- Last hail
- Jul 13, 2023
- 1.00 in, quarter size
- Hail days, last 5 years
- 1
- since Nov 3, 2021 · 1 report
- Largest ever
- 1.75 in
- golf ball · Jul 21, 1981
18 reports on 17 days since 1981 · #186 of 451 Minnesota places
Hail map · Janesville
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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Send a request to Moxisync Labs for review. The latest hail report in Janesville is from July 13, 2023. We’re building local roofer coverage. Submitting a request does not guarantee a quote or book an inspection.
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What the record says about Janesville
The latest hail report in and around Janesville is from July 13, 2023, 1.00 in (quarter size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.00 in on July 13, 2023.
Over the 20 years 2006–2025, Janesville logged 10 reports on 9 hail days, about 0.5 reports a year. That is 11% more than the median Minnesota town on this site (0.5 a year) and ranks #186 of 451 Minnesota cities and towns on this site for all-time reports. Janesville accounts for 16% of the 115 reports filed in Waseca County.
0% of reports with a size were 2 inches (hen egg) or larger, against 6% for the median Minnesota town on this site. The largest hail on record here is 1.75 in (golf ball) on July 21, 1981.
Reports were down 57% in 2016–2025 (3) compared with 2006–2015 (7). The busiest year was 2002, with 3 reports on 3 days. Hail here peaks in May (33% of reports); 61% fall between April and June.
Reports a year 2006–2025 average
- Janesville 0.5
- Waseca County 2.6
- Median Minnesota town on this site 0.5
Hail days 2006–2025
- Janesville 9
- Waseca County 35
- Median Minnesota town on this site 7
Share 2 in or larger of sized reports
- Janesville 0%
- Waseca County 4%
- Median Minnesota town on this site 6%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 1 | 1 | |||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jul 13, 2023 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jul 21, 1981 | 1.75 ingolf ball | — | Waseca | 17:20 local · NCEI |
| Jun 28, 1981 | 1.75 ingolf ball | — | Waseca | 17:57 local · NCEI |
| Apr 27, 1981 | 1.75 ingolf ball | — | Waseca | 23:45 local · NCEI |
| Jul 13, 2023 | 1.00 inquarter | 2.76 S Janesville | Waseca | 18:30 local · NCEI |
| Aug 10, 2016 | 1.00 inquarter | 0.5 E Janesville | Waseca | 18:25 local · NCEI |
Sizes filed before 1996 are often rough estimates (round numbers like 7.00 or 8.00 in) without an exact spot; they are shown as NOAA filed them.
Size of every report
- Under 1 in 11 61%
- 1–2 in 7 39%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jul 13, 2023 | 1.00 inquarter | 2.76 S Janesville | Waseca | 18:30 local · NCEI |
| May 15, 2017 | 0.75 inpenny | 0.5 E Janesville | Waseca | 22:09 local · NCEI |
| Aug 10, 2016 | 1.00 inquarter | 0.5 E Janesville | Waseca | 18:25 local · NCEI |
| May 25, 2015 | 0.75 inpenny | 0.5 E Janesville | Waseca | 17:35 local · NCEI |
| May 25, 2015 | 0.75 inpenny | 4.6 SSE Madison Lake | Blue Earth | 17:30 local · NCEI |
| May 7, 2014 | 0.75 inpenny | 2.13 SSE Janesville | Waseca | 21:12 local · NCEI |
| Jul 17, 2008 | 1.00 inquarter | 2.81 S Janesville | Waseca | 08:30 local · NCEI |
| Jun 20, 2007 | 1.00 inquarter | Janesville | Waseca | 21:53 local · NCEI |
| Mar 21, 2007 | 0.75 inpenny | 4 E Janesville | Waseca | 18:54 local · NCEI |
| Jul 19, 2006 | 0.88 innickel | Janesville | Waseca | 21:55 local · NCEI |
| Apr 18, 2004 | 0.75 inpenny | 5 S Richmond | Stearns | 14:45 local · NCEI |
| Jun 25, 2002 | 0.75 inpenny | Janesville | Waseca | 23:45 local · NCEI |
Hail history near Janesville
- Elysian 10 km · 14
- Waterville 16 km · 12
- Waseca 17 km · 39
- Mankato 22 km · 59
- Morristown 24 km · 22
- North Mankato 27 km · 12
- Mapleton 29 km · 13
- Le Center 30 km · 19
Questions about hail in Janesville
How often does it hail in Janesville, Minnesota?
18 hail reports have been logged in and within about 5 km (3 miles) of Janesville since 1981. Over the 20 years 2006–2025 that averages 0.5 reports a year. That ranks #186 of 451 Minnesota places by number of reports.
When is hail season in Janesville?
Most reports come in May, July, June. May alone accounts for 33% of all reports.
What is the largest hail recorded in Janesville?
1.75 in (golf ball size) on July 21, 1981. 0% of reports here were 2 inches or larger.
When did it last hail in Janesville?
The most recent report in this data is from July 13, 2023 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Janesville had in the last five years?
1 separate days with hail reports since November 3, 2021, adding up to 1 reports. The most recent was July 13, 2023.
Where does this hail data come from?
Hail reports come from the NOAA NCEI Storm Events Database, which the National Weather Service compiles from spotter, public, law enforcement and media reports. Recent days use preliminary NWS Local Storm Reports via the Iowa Environmental Mesonet until NOAA publishes final data. Only reported hail is counted, so areas with fewer people tend to have fewer reports.