Hail History

Hail history for Watertown, Minnesota

NOAA hail reports in and within about 5 km (3 miles) of Watertown since 1964, with preliminary reports to November 3, 2026.

Readout · Watertown

Last hail
Aug 11, 2023
1.00 in, quarter size
Hail days, last 5 years
1
since Nov 3, 2021 · 1 report
Largest ever
2.75 in
baseball · Jun 20, 2007

23 reports on 18 days since 1964 · #118 of 451 Minnesota places

Hail map · Watertown

Watertown Independence Waconia Winsted Lester Prairie Victoria 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
23 most recent reports with a location; Carver County is shaded. Open street map

For homeowners

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What the record says about Watertown

The latest hail report in and around Watertown is from August 11, 2023, 1.00 in (quarter size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.00 in on August 11, 2023.

Over the 20 years 2006–2025, Watertown logged 16 reports on 11 hail days, about 0.8 reports a year. That is 78% more than the median Minnesota town on this site (0.5 a year) and ranks #118 of 451 Minnesota cities and towns on this site for all-time reports. Watertown accounts for 12% of the 191 reports filed in Carver County.

17% of reports with a size were 2 inches (hen egg) or larger, against 6% for the median Minnesota town on this site. The largest hail on record here is 2.75 in (baseball) on June 20, 2007 near 5 SW Delano.

Reports were down 67% in 2016–2025 (4) compared with 2006–2015 (12). The busiest year was 2012, with 5 reports on 3 days. Hail here peaks in June (35% of reports); 52% fall between April and June.

Reports a year 2006–2025 average

  • Watertown 0.8
  • Carver County 5.5
  • Median Minnesota town on this site 0.5

Hail days 2006–2025

  • Watertown 11
  • Carver County 46
  • Median Minnesota town on this site 7

Share 2 in or larger of sized reports

  • Watertown 17%
  • Carver County 8%
  • Median Minnesota town on this site 6%

Hail over time

0246 1964: 1 reports, largest 1.00 in 1970 1980 1990 2000 2001: 1 reports, largest 2.50 in 2002: 4 reports, largest 1.75 in 2005: 1 reports, largest 0.75 in 2006: 1 reports, largest 1.25 in 2007: 5 reports, largest 2.75 in 2009: 1 reports, largest 1.00 in 2010 2012: 5 reports, largest 0.88 in 2018: 1 reports, largest 0.75 in 2019: 2 reports, largest 2.50 in 2020 2023: 1 reports, largest 1.00 in
Reports per year, 1964–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
02468 Jan Feb Mar Apr May: 4 reports (17%) May June: 8 reports (35%) Jun July: 3 reports (13%) Jul August: 6 reports (26%) Aug September: 2 reports (9%) Sep Oct Nov Dec
All 23 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 0
2024 0
2023 1 1
2022 0
2021 0
2020 0
2019 2 2
2018 1 1
2017 0

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Aug 11, 2023 1 1.00 in —

Largest hail on record

Largest hail reports in Watertown
Date Size Location County Time · source
Jun 20, 2007 2.75 inbaseball 5 SW Delano Wright 17:30 local · NCEI
Aug 5, 2019 2.50 intennis ball 0.69 S Watertown Carver 11:26 local · NCEI
Aug 5, 2019 2.50 intennis ball 0.85 SE Watertown Carver 11:22 local · NCEI
Jun 11, 2001 2.50 intennis ball Watertown Carver 16:28 local · NCEI
Sep 20, 2007 1.75 ingolf ball Watertown Carver 16:14 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Watertown
Date Size Location County Time · source
Aug 11, 2023 1.00 inquarter Watertown Carver 16:10 local · NCEI
Aug 5, 2019 2.50 intennis ball 0.69 S Watertown Carver 11:26 local · NCEI
Aug 5, 2019 2.50 intennis ball 0.85 SE Watertown Carver 11:22 local · NCEI
May 24, 2018 0.75 inpenny 1.2 SE Watertown Carver 18:00 local · NCEI
Aug 23, 2012 0.75 inpenny 0.85 NE Hollywood Carver 19:36 local · NCEI
Jun 14, 2012 0.88 innickel 0.69 S Watertown Carver 08:01 local · NCEI
Jun 14, 2012 0.75 inpenny 0.69 S Watertown Carver 07:55 local · NCEI
May 19, 2012 0.88 innickel 0.69 S Watertown Carver 17:19 local · NCEI
May 19, 2012 0.88 innickel 0.49 W Watertown Carver 16:51 local · NCEI
Jul 21, 2009 1.00 inquarter 0.69 S Watertown Carver 15:30 local · NCEI
Sep 20, 2007 1.75 ingolf ball Watertown Carver 16:14 local · NCEI
Aug 11, 2007 0.75 inpenny Watertown Carver 18:34 local · NCEI

Hail history near Watertown

Questions about hail in Watertown

How often does it hail in Watertown, Minnesota?

23 hail reports have been logged in and within about 5 km (3 miles) of Watertown since 1964. Over the 20 years 2006–2025 that averages 0.8 reports a year. That ranks #118 of 451 Minnesota places by number of reports.

When is hail season in Watertown?

Most reports come in June, August, May. June alone accounts for 35% of all reports.

What is the largest hail recorded in Watertown?

2.75 in (baseball size) on June 20, 2007 near 5 SW Delano. 17% of reports here were 2 inches or larger.

When did it last hail in Watertown?

The most recent report in this data is from August 11, 2023 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

1 separate days with hail reports since November 3, 2021, adding up to 1 reports. The most recent was August 11, 2023.

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.