Hail history for DeForest, Wisconsin
NOAA hail reports in and within about 5 km (3 miles) of DeForest since 2005, with preliminary reports to November 3, 2026.
Readout · DeForest
- Last hail
- Apr 18, 2025
- 0.75 in, penny size
- Hail days, last 5 years
- 3
- since Nov 3, 2021 · 4 reports
- Largest ever
- 2.50 in
- tennis ball · May 15, 2017
14 reports on 9 days since 2005 · #143 of 271 Wisconsin places
Hail map · DeForest
- 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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What the record says about DeForest
The latest hail report in and around DeForest is from April 18, 2025, 0.75 in (penny size). Since November 3, 2021 there have been 3 separate hail days; the biggest stones in that time were 1.00 in on April 18, 2025.
Over the 20 years 2006–2025, DeForest logged 13 reports on 8 hail days, about 0.7 reports a year. That is 44% more than the median Wisconsin town on this site (0.5 a year) and ranks #143 of 271 Wisconsin cities and towns on this site for all-time reports. DeForest accounts for 3% of the 555 reports filed in Dane County.
14% of reports with a size were 2 inches (hen egg) or larger, against 6% for the median Wisconsin town on this site. The largest hail on record here is 2.50 in (tennis ball) on May 15, 2017 near 0.5 W Windsor.
Reports were up 450% in 2016–2025 (11) compared with 2006–2015 (2). The busiest year was 2017, with 6 reports on 2 days. Hail here peaks in May (43% of reports); 64% fall between April and June.
Reports a year 2006–2025 average
- DeForest 0.7
- Dane County 17.2
- Median Wisconsin town on this site 0.5
Hail days 2006–2025
- DeForest 8
- Dane County 89
- Median Wisconsin town on this site 7
Share 2 in or larger of sized reports
- DeForest 14%
- Dane County 12%
- Median Wisconsin 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 | 2 | 2 | |||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 1 | 1 | |||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 2 | 4 | 6 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Apr 18, 2025 | 2 | 1.00 in | — |
| May 7, 2024 | 1 | 0.75 in | — |
| Sep 20, 2022 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| May 15, 2017 | 2.50 intennis ball | 0.5 W Windsor | Dane | 15:20 local · NCEI |
| May 15, 2017 | 2.00 inhen egg | 1.01 W De Forest | Dane | 15:20 local · NCEI |
| May 15, 2017 | 1.75 ingolf ball | 2.07 S Norway Grove | Dane | 15:15 local · NCEI |
| May 17, 2006 | 1.75 ingolf ball | De Forest | Dane | 13:58 local · NCEI |
| Apr 18, 2025 | 1.00 inquarter | 1.01 W De Forest | Dane | 06:17 local · NCEI |
Size of every report
- Under 1 in 6 43%
- 1–2 in 6 43%
- 2 in + 2 14%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Apr 18, 2025 | 0.75 inpenny | 1.22 SW De Forest | Dane | 06:17 local · NCEI |
| Apr 18, 2025 | 1.00 inquarter | 1.01 W De Forest | Dane | 06:17 local · NCEI |
| May 7, 2024 | 0.75 inpenny | 0.5 W Windsor | Dane | 18:49 local · NCEI |
| Sep 20, 2022 | 1.00 inquarter | 0.5 W De Forest | Dane | 12:27 local · NCEI |
| May 15, 2017 | 2.50 intennis ball | 0.5 W Windsor | Dane | 15:20 local · NCEI |
| May 15, 2017 | 2.00 inhen egg | 1.01 W De Forest | Dane | 15:20 local · NCEI |
| May 15, 2017 | 1.75 ingolf ball | 2.07 S Norway Grove | Dane | 15:15 local · NCEI |
| May 15, 2017 | 1.00 inquarter | 1.22 NW De Forest | Dane | 15:15 local · NCEI |
| Feb 28, 2017 | 0.75 inpenny | 1.01 W De Forest | Dane | 09:30 local · NCEI |
| Feb 28, 2017 | 0.88 innickel | 0.5 W Windsor | Dane | 09:25 local · NCEI |
| Sep 21, 2016 | 1.00 inquarter | 1.01 W De Forest | Dane | 16:10 local · NCEI |
| Apr 13, 2014 | 0.75 inpenny | 0.5 W Windsor | Dane | 00:02 local · NCEI |
Hail history near DeForest
- Sun Prairie 10 km · 53
- Waunakee 10 km · 10
- Madison 17 km · 164
- Middleton 19 km · 30
- Cottage Grove 19 km · 17
- Poynette 19 km · 11
- McFarland 24 km · 19
- Marshall 24 km · 13
Questions about hail in DeForest
How often does it hail in DeForest, Wisconsin?
14 hail reports have been logged in and within about 5 km (3 miles) of DeForest since 2005. Over the 20 years 2006–2025 that averages 0.7 reports a year. That ranks #143 of 271 Wisconsin places by number of reports.
When is hail season in DeForest?
Most reports come in May, April, February. May alone accounts for 43% of all reports.
What is the largest hail recorded in DeForest?
2.50 in (tennis ball size) on May 15, 2017 near 0.5 W Windsor. 14% of reports here were 2 inches or larger.
When did it last hail in DeForest?
The most recent report in this data is from April 18, 2025 (0.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has DeForest had in the last five years?
3 separate days with hail reports since November 3, 2021, adding up to 4 reports. The most recent was April 18, 2025.
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.