Hail history for Grantsburg, Wisconsin
NOAA hail reports in and within about 5 km (3 miles) of Grantsburg since 1956, with preliminary reports to November 3, 2026.
Readout · Grantsburg
- Last hail
- Apr 17, 2025
- 1.00 in, quarter size
- Hail days, last 5 years
- 5
- since Nov 3, 2021 · 10 reports
- Largest ever
- 2.00 in
- hen egg · May 12, 2022
29 reports on 23 days since 1956 · #37 of 271 Wisconsin places
Hail map · Grantsburg
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
Roof damage after hail? Get a free inspection
Hail bruises shingles and cracks seals in ways you can't see from the ground, and most insurers set a claim deadline after the storm. The latest hail report in Grantsburg is from April 17, 2025. A local roofer can check and document it at no cost.
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What the record says about Grantsburg
The latest hail report in and around Grantsburg is from April 17, 2025, 1.00 in (quarter size). Since November 3, 2021 there have been 5 separate hail days; the biggest stones in that time were 2.00 in on May 12, 2022.
Over the 20 years 2006–2025, Grantsburg logged 21 reports on 15 hail days, about 1.1 reports a year. That is about twice the median Wisconsin town on this site (0.5 a year) and ranks #37 of 271 Wisconsin cities and towns on this site for all-time reports. Grantsburg accounts for 19% of the 150 reports filed in Burnett County.
7% 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 2.00 in (hen egg) on May 12, 2022 near 0.84 SW Grantsburg.
Reports were up 63% in 2016–2025 (13) compared with 2006–2015 (8). The busiest year was 2022, with 8 reports on 3 days. Hail here peaks in June (34% of reports); 66% fall between April and June.
Reports a year 2006–2025 average
- Grantsburg 1.1
- Burnett County 4.6
- Median Wisconsin town on this site 0.5
Hail days 2006–2025
- Grantsburg 15
- Burnett County 51
- Median Wisconsin town on this site 7
Share 2 in or larger of sized reports
- Grantsburg 7%
- Burnett County 4%
- 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 | 1 | 1 | |||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 1 | 1 | |||||||||||
| 2022 | 5 | 3 | 8 | ||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 2 | 2 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Apr 17, 2025 | 1 | 1.00 in | — |
| Jul 19, 2023 | 1 | 1.00 in | — |
| Jun 27, 2022 | 3 | 1.75 in | — |
| May 12, 2022 | 4 | 2.00 in | — |
| May 9, 2022 | 1 | 0.88 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| May 12, 2022 | 2.00 inhen egg | 0.84 SW Grantsburg | Burnett | 12:20 local · NCEI |
| Jun 20, 2013 | 2.00 inhen egg | 2.81 N (Gtg)grantsburg Muni | Burnett | 17:50 local · NCEI |
| Jun 27, 2022 | 1.75 ingolf ball | 0.69 S Grantsburg | Burnett | 17:18 local · NCEI |
| May 12, 2022 | 1.75 ingolf ball | Grantsburg | Burnett | 12:17 local · NCEI |
| Jun 25, 1990 | 1.75 ingolf ball | — | Burnett | 22:30 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 10 34%
- 1–2 in 17 59%
- 2 in + 2 7%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Apr 17, 2025 | 1.00 inquarter | Grantsburg | Burnett | 11:45 local · NCEI |
| Jul 19, 2023 | 1.00 inquarter | 2.97 WNW Grantsburg | Burnett | 17:12 local · NCEI |
| Jun 27, 2022 | 1.75 ingolf ball | 0.69 S Grantsburg | Burnett | 17:18 local · NCEI |
| Jun 27, 2022 | 1.25 inhalf dollar | 1.19 SW Grantsburg | Burnett | 16:53 local · NCEI |
| Jun 27, 2022 | 1.00 inquarter | 1.93 W Grantsburg | Burnett | 16:50 local · NCEI |
| May 12, 2022 | 0.75 inpenny | Grantsburg | Burnett | 12:31 local · NCEI |
| May 12, 2022 | 1.25 inhalf dollar | Grantsburg | Burnett | 12:22 local · NCEI |
| May 12, 2022 | 2.00 inhen egg | 0.84 SW Grantsburg | Burnett | 12:20 local · NCEI |
| May 12, 2022 | 1.75 ingolf ball | Grantsburg | Burnett | 12:17 local · NCEI |
| May 9, 2022 | 0.88 innickel | 0.84 SW Grantsburg | Burnett | 09:30 local · NCEI |
| Jul 19, 2019 | 1.50 inping pong ball | 2.05 WSW Grantsburg | Burnett | 15:54 local · NCEI |
| Jun 11, 2017 | 0.75 inpenny | Grantsburg | Burnett | 11:25 local · NCEI |
Hail history near Grantsburg
- Siren 23 km · 21
- Webster 27 km · 17
- St. Croix Falls 42 km · 11
- Cumberland 58 km · 26
- Shell Lake 60 km · 16
Questions about hail in Grantsburg
How often does it hail in Grantsburg, Wisconsin?
29 hail reports have been logged in and within about 5 km (3 miles) of Grantsburg since 1956. Over the 20 years 2006–2025 that averages 1.1 reports a year. That ranks #37 of 271 Wisconsin places by number of reports.
When is hail season in Grantsburg?
Most reports come in June, May, July. June alone accounts for 34% of all reports.
What is the largest hail recorded in Grantsburg?
2.00 in (hen egg size) on May 12, 2022 near 0.84 SW Grantsburg. 7% of reports here were 2 inches or larger.
When did it last hail in Grantsburg?
The most recent report in this data is from April 17, 2025 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Grantsburg had in the last five years?
5 separate days with hail reports since November 3, 2021, adding up to 10 reports. The most recent was April 17, 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.