Hail History

Hail history for Green County, Wisconsin

Every NOAA hail report filed in Green County since 1974, with preliminary National Weather Service reports to November 3, 2026.

Readout · Green County

Last hail
Apr 17, 2026
2.75 in, baseball size
Hail days, last 5 years
13
since Nov 3, 2021 · 31 reports
Largest ever
3.00 in
teacup · Apr 7, 2020

94 reports on 60 days since 1974 · #50 of 73 Wisconsin counties

Hail map · Green County

Monroe New Glarus Brodhead Monticello 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
89 most recent reports with a location. Dot size and colour follow hail size. Open street map

For homeowners

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What the record says about Green County

The latest hail report in Green County is from April 17, 2026, 2.75 in (baseball size). Since November 3, 2021 there have been 13 separate hail days; the biggest stones in that time were 2.75 in on April 17, 2026.

Over the 20 years 2006–2025, Green County logged 52 reports on 28 hail days, about 2.6 reports a year. That is 26% less than the median Wisconsin county (3.5 a year) and ranks #50 of 73 Wisconsin counties for all-time reports. Green County holds 1% of all 9,358 hail reports in Wisconsin.

12% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median Wisconsin county. The largest hail on record here is 3.00 in (teacup) on April 7, 2020 near 4.12 SW Badger Arpt.

Reports were up 171% in 2016–2025 (38) compared with 2006–2015 (14). The busiest year was 2025, with 11 reports on 3 days. Hail here peaks in April (39% of reports); 57% fall between April and June.

Reports a year 2006–2025 average

  • Green County 2.6
  • Median Wisconsin county 3.5

Hail days 2006–2025

  • Green County 28
  • Median Wisconsin county 37

Share 2 in or larger of sized reports

  • Green County 12%
  • Median Wisconsin county 7%

Hail over time

051015 1974: 2 reports, largest 1.25 in 1980 1981: 1 reports, largest 1.50 in 1984: 2 reports, largest 1.75 in 1988: 1 reports, largest 1.13 in 1990: 4 reports, largest 1.75 in 1990 1991: 1 reports, largest 2.00 in 1992: 2 reports, largest 1.75 in 1994: 5 reports, largest 2.00 in 1996: 1 reports, largest 1.75 in 1997: 1 reports, largest 0.75 in 1998: 3 reports, largest 1.75 in 2000: 3 reports, largest 1.50 in 2000 2001: 5 reports, largest 1.75 in 2003: 3 reports, largest 1.00 in 2004: 2 reports, largest 1.00 in 2005: 2 reports, largest 1.25 in 2006: 4 reports, largest 1.00 in 2007: 1 reports, largest 1.00 in 2008: 3 reports, largest 1.00 in 2009: 1 reports, largest 1.00 in 2010: 1 reports, largest 1.00 in 2010 2011: 1 reports, largest 1.00 in 2013: 2 reports, largest 1.00 in 2015: 1 reports, largest 0.75 in 2016: 2 reports, largest 0.88 in 2017: 1 reports, largest 0.75 in 2019: 1 reports, largest 1.25 in 2020: 7 reports, largest 3.00 in 2020 2023: 6 reports, largest 1.75 in 2024: 10 reports, largest 1.50 in 2025: 11 reports, largest 2.75 in 2026: 4 reports, largest 2.75 in
Reports per year, 1974–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
010203040 Jan February: 2 reports (2%) Feb March: 6 reports (6%) Mar April: 37 reports (39%) Apr May: 7 reports (7%) May June: 10 reports (11%) Jun July: 13 reports (14%) Jul August: 9 reports (10%) Aug September: 4 reports (4%) Sep October: 6 reports (6%) Oct Nov Dec
All 94 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 13 4
2025 911 11
2024 2314 10
2023 51 6
2022 0
2021 0
2020 7 7
2019 1 1
2018 0
2017 1 1

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Apr 17, 2026 3 2.75 in —
Mar 10, 2026 1 1.00 in —
Aug 16, 2025 1 2.00 in —
May 15, 2025 1 1.00 in —
Apr 18, 2025 9 2.75 in —
Jul 15, 2024 3 1.50 in —
Jul 13, 2024 1 1.00 in —
May 21, 2024 1 1.00 in —
Apr 27, 2024 3 1.00 in —
Feb 8, 2024 2 1.00 in —
Aug 11, 2023 1 1.00 in —
Apr 19, 2023 2 1.00 in —
Apr 4, 2023 3 1.75 in —

Largest hail on record

Largest hail reports in Green County
Date Size Location Time · source
Apr 7, 2020 3.00 inteacup 4.12 SW Badger Arpt 17:04 local · NCEI
Apr 17, 2026 2.75 inbaseball 0.47 W Monroe 16:20 local · NCEI
Apr 18, 2025 2.75 inbaseball 4.11 NE Attica 05:45 local · NCEI
Apr 7, 2020 2.50 intennis ball Clarno 17:19 local · NCEI
Apr 18, 2025 2.25 inhen egg 1.47 NNE Albany 05:55 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Green County
Date Size Location Time · source
Apr 17, 2026 2.75 inbaseball 0.47 W Monroe 16:20 local · NCEI
Apr 17, 2026 1.50 inping pong ball 0.87 SW Monroe 16:20 local · NCEI
Apr 17, 2026 1.25 inhalf dollar 1.23 NW Monroe 16:11 local · NCEI
Mar 10, 2026 1.00 inquarter 2.57 NE Browntown 18:43 local · NCEI
Aug 16, 2025 2.00 inhen egg 1.23 NW Martintown 18:24 local · NCEI
May 15, 2025 1.00 inquarter 0.69 N Monroe 14:42 local · NCEI
Apr 18, 2025 2.25 inhen egg 1.47 NNE Albany 05:55 local · NCEI
Apr 18, 2025 2.00 inhen egg 5.58 E Attica 05:55 local · NCEI
Apr 18, 2025 0.88 innickel 3.61 E Dayton 05:50 local · NCEI
Apr 18, 2025 2.75 inbaseball 4.11 NE Attica 05:45 local · NCEI
Apr 18, 2025 2.00 inhen egg 0.86 NW Monticello 05:44 local · NCEI
Apr 18, 2025 2.00 inhen egg 0.86 SW New Glarus Arpt 05:41 local · NCEI

Cities and towns in Green County

PlaceReportsLargest
Monroe152.75 in
New Glarus142.00 in
Brodhead121.75 in
Monticello102.00 in

Smaller places with fewer than 10 reports

These places have too few reports for a page of their own, so their record lives here.

PlaceReportsHail daysLatest
Albany77Apr 18, 2025
Brooklyn77Apr 18, 2025
Browntown65Mar 10, 2026
Juda44Apr 4, 2023

Questions about hail in Green County

How often does it hail in Green County, Wisconsin?

94 hail reports have been logged in Green County since 1974. Over the 20 years 2006–2025 that averages 2.6 reports a year. That ranks #50 of 73 Wisconsin counties by number of reports.

When is hail season in Green County?

Most reports come in April, July, June. April alone accounts for 39% of all reports.

What is the largest hail recorded in Green County?

3.00 in (teacup size) on April 7, 2020 near 4.12 SW Badger Arpt. 12% of reports here were 2 inches or larger.

When did it last hail in Green County?

The most recent report in this data is from April 17, 2026 (2.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

How many hail storms has Green County had in the last five years?

13 separate days with hail reports since November 3, 2021, adding up to 31 reports. The most recent was April 17, 2026.

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.