Hail History

Hail history for Lake Geneva, Wisconsin

NOAA hail reports in and within about 5 km (3 miles) of Lake Geneva since 1980, with preliminary reports to November 3, 2026.

Readout · Lake Geneva

Last hail
Aug 9, 2026
1.00 in, quarter size · preliminary
Hail days, last 5 years
2
since Nov 3, 2021 · 2 reports
Largest ever
2.00 in
hen egg · Jul 20, 1980

10 reports on 10 days since 1980 · #251 of 271 Wisconsin places

Hail map · Lake Geneva

Lake Geneva Bloomfield Elkhorn Burlington Delavan East Troy Waterford Mukwonago 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
10 most recent reports with a location; Walworth County is shaded. Open street map

For homeowners

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What the record says about Lake Geneva

The latest hail report in and around Lake Geneva is from August 9, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.00 in on August 9, 2026.

Over the 20 years 2006–2025, Lake Geneva logged 5 reports on 5 hail days, about 0.3 reports a year. That is 44% less than the median Wisconsin town on this site (0.5 a year) and ranks #251 of 271 Wisconsin cities and towns on this site for all-time reports. Lake Geneva accounts for 7% of the 139 reports filed in Walworth County.

10% 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 July 20, 1980.

Hail here peaks in March (30% of reports); 30% fall between April and June.

Reports a year 2006–2025 average

  • Lake Geneva 0.3
  • Walworth County 4.1
  • Median Wisconsin town on this site 0.5

Hail days 2006–2025

  • Lake Geneva 5
  • Walworth County 38
  • Median Wisconsin town on this site 7

Share 2 in or larger of sized reports

  • Lake Geneva 10%
  • Walworth County 4%
  • Median Wisconsin town on this site 6%

Hail over time

01 1980: 1 reports, largest 2.00 in 1980 1990: 1 reports, largest 1.75 in 1990 2000: 1 reports, largest 0.75 in 2000 2005: 1 reports, largest 1.00 in 2006: 1 reports, largest 0.75 in 2010 2015: 1 reports, largest 1.00 in 2017: 1 reports, largest 1.00 in 2020 2021: 1 reports, largest 0.75 in 2023: 1 reports, largest 1.00 in 2026: 1 reports, largest 1.00 in
Reports per year, 1980–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0123 Jan Feb March: 3 reports (30%) Mar April: 2 reports (20%) Apr May: 1 reports (10%) May Jun July: 1 reports (10%) Jul August: 1 reports (10%) Aug September: 2 reports (20%) Sep Oct Nov Dec
All 10 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 1 1
2025 0
2024 0
2023 1 1
2022 0
2021 1 1
2020 0
2019 0
2018 0
2017 1 1

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Aug 9, 2026 1 1.00 in View
Apr 4, 2023 1 1.00 in —

Largest hail on record

Largest hail reports in Lake Geneva
Date Size Location County Time · source
Jul 20, 1980 2.00 inhen egg — Walworth 18:30 local · NCEI
Mar 13, 1990 1.75 ingolf ball — Walworth 15:54 local · NCEI
Aug 9, 2026 1.00 inquarter 1 SSW Lake Geneva Walworth 04:03 UTC · NWS prelim.
Apr 4, 2023 1.00 inquarter 1.38 S Lake Geneva Walworth 13:28 local · NCEI
May 17, 2017 1.00 inquarter 1.23 SE Lake Geneva Walworth 21:56 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

Most recent reports

Most recent hail reports in Lake Geneva
Date Size Location County Time · source
Aug 9, 2026 1.00 inquarter 1 SSW Lake Geneva Walworth 04:03 UTC · NWS prelim.
Apr 4, 2023 1.00 inquarter 1.38 S Lake Geneva Walworth 13:28 local · NCEI
Sep 7, 2021 0.75 inpenny 0.69 S Lake Geneva Walworth 11:48 local · NCEI
May 17, 2017 1.00 inquarter 1.23 SE Lake Geneva Walworth 21:56 local · NCEI
Apr 9, 2015 1.00 inquarter 0.51 E Lake Geneva Walworth 17:42 local · NCEI
Mar 11, 2006 0.75 inpenny Lake Geneva Walworth 13:02 local · NCEI
Sep 22, 2005 1.00 inquarter Lake Geneva Walworth 12:28 local · NCEI
Mar 8, 2000 0.75 inpenny Lake Geneva Walworth 17:00 local · NCEI
Mar 13, 1990 1.75 ingolf ball — Walworth 15:54 local · NCEI
Jul 20, 1980 2.00 inhen egg — Walworth 18:30 local · NCEI

Hail history near Lake Geneva

Questions about hail in Lake Geneva

How often does it hail in Lake Geneva, Wisconsin?

10 hail reports have been logged in and within about 5 km (3 miles) of Lake Geneva since 1980. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #251 of 271 Wisconsin places by number of reports.

When is hail season in Lake Geneva?

Most reports come in March, April, September. March alone accounts for 30% of all reports.

What is the largest hail recorded in Lake Geneva?

2.00 in (hen egg size) on July 20, 1980. 10% of reports here were 2 inches or larger.

When did it last hail in Lake Geneva?

The most recent report in this data is from August 9, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

How many hail storms has Lake Geneva had in the last five years?

2 separate days with hail reports since November 3, 2021, adding up to 2 reports. The most recent was August 9, 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.