Hail History

Hail history for Mequon, Wisconsin

NOAA hail reports in and within about 5 km (3 miles) of Mequon since 1960, with preliminary reports to November 3, 2026.

Readout · Mequon

Last hail
Jun 15, 2016
1.00 in, quarter size
Hail days, last 5 years
0
since Nov 3, 2021 · 0 reports
Largest ever
3.00 in
teacup · Jun 23, 2004

21 reports on 16 days since 1960 · #65 of 271 Wisconsin places

Hail map · Mequon

Mequon Germantown Cedarburg Menomonee Falls Grafton Richfield Port Washington 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
21 most recent reports with a location; Ozaukee County is shaded. Open street map

For homeowners

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What the record says about Mequon

The latest hail report in and around Mequon is from June 15, 2016, 1.00 in (quarter size). There has been no hail report here in the five years since November 3, 2021.

Over the 20 years 2006–2025, Mequon logged 7 reports on 5 hail days, about 0.3 reports a year. That is 22% less than the median Wisconsin town on this site (0.5 a year) and ranks #65 of 271 Wisconsin cities and towns on this site for all-time reports. Mequon accounts for 30% of the 71 reports filed in Ozaukee 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 3.00 in (teacup) on June 23, 2004 near Thiensville.

The busiest year was 2016, with 3 reports on 2 days. Hail here peaks in June (29% of reports); 43% fall between April and June.

Reports a year 2006–2025 average

  • Mequon 0.3
  • Ozaukee County 2.1
  • Median Wisconsin town on this site 0.5

Hail days 2006–2025

  • Mequon 5
  • Ozaukee County 22
  • Median Wisconsin town on this site 7

Share 2 in or larger of sized reports

  • Mequon 14%
  • Ozaukee County 9%
  • Median Wisconsin town on this site 6%

Hail over time

0123 1960: 1 reports, largest 1.75 in 1960 1962: 1 reports, largest 1.00 in 1964: 2 reports, largest 1.75 in 1970 1976: 2 reports, largest 1.00 in 1980 1989: 1 reports, largest 2.00 in 1990 1991: 1 reports, largest 2.00 in 1999: 1 reports, largest 0.75 in 2000: 1 reports, largest 0.75 in 2000 2003: 1 reports, largest 1.00 in 2004: 3 reports, largest 3.00 in 2006: 1 reports, largest 1.00 in 2007: 1 reports, largest 0.75 in 2010 2015: 2 reports, largest 1.00 in 2016: 3 reports, largest 1.50 in 2020
Reports per year, 1960–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0246 Jan Feb March: 1 reports (5%) Mar April: 1 reports (5%) Apr May: 2 reports (10%) May June: 6 reports (29%) Jun July: 5 reports (24%) Jul August: 3 reports (14%) Aug September: 3 reports (14%) Sep Oct Nov Dec
All 21 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 0
2024 0
2023 0
2022 0
2021 0
2020 0
2019 0
2018 0
2017 0

Largest hail on record

Largest hail reports in Mequon
Date Size Location County Damage Time · source
Jun 23, 2004 3.00 inteacup Thiensville Ozaukee $50K 20:59 local · NCEI
Jun 14, 1991 2.00 inhen egg — Ozaukee — 12:30 local · NCEI
Jul 27, 1989 2.00 inhen egg — Ozaukee — 12:45 local · NCEI
Jul 22, 1964 1.75 ingolf ball — Milwaukee — 13:00 local · NCEI
Jul 22, 1964 1.75 ingolf ball — Milwaukee — 13:00 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 Mequon
Date Size Location County Damage Time · source
Jun 15, 2016 1.00 inquarter 1.01 E Mequon Ozaukee — 19:23 local · NCEI
Jun 15, 2016 1.50 inping pong ball 2.13 WNW Bayside Ozaukee — 19:22 local · NCEI
Apr 25, 2016 1.00 inquarter 0.69 N Bartel Ozaukee — 16:37 local · NCEI
Aug 2, 2015 1.00 inquarter 1.01 E Thiensville Ozaukee — 18:21 local · NCEI
Aug 2, 2015 1.00 inquarter 2.87 WSW Five Corners Ozaukee — 18:05 local · NCEI
Sep 27, 2007 0.75 inpenny 4 N Milwaukee Timmerman Airport Milwaukee — 15:23 local · NCEI
Sep 8, 2006 1.00 inquarter 2 SE Cedarburg Ozaukee — 15:53 local · NCEI
Jun 23, 2004 3.00 inteacup Thiensville Ozaukee $50K 20:59 local · NCEI
May 23, 2004 0.75 inpenny Mequon Ozaukee — 19:45 local · NCEI
May 23, 2004 1.50 inping pong ball Mequon Ozaukee — 19:43 local · NCEI
Aug 1, 2003 1.00 inquarter Mequon Ozaukee — 03:00 local · NCEI
Mar 8, 2000 0.75 inpenny Mequon Ozaukee — 19:50 local · NCEI

Hail history near Mequon

Questions about hail in Mequon

How often does it hail in Mequon, Wisconsin?

21 hail reports have been logged in and within about 5 km (3 miles) of Mequon since 1960. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #65 of 271 Wisconsin places by number of reports.

When is hail season in Mequon?

Most reports come in June, July, August. June alone accounts for 29% of all reports.

What is the largest hail recorded in Mequon?

3.00 in (teacup size) on June 23, 2004 near Thiensville. 14% of reports here were 2 inches or larger.

When did it last hail in Mequon?

The most recent report in this data is from June 15, 2016 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

None: there has been no hail report in and within about 5 km (3 miles) of Mequon since November 3, 2021. The last one was on June 15, 2016.

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.