Hail History

Hail history for Potosi, Missouri

NOAA hail reports in and within about 5 km (3 miles) of Potosi since 1974, with preliminary reports to November 3, 2026.

Readout · Potosi

Last hail
Mar 30, 2025
1.00 in, quarter size
Hail days, last 5 years
1
since Nov 3, 2021 · 1 report
Largest ever
2.75 in
baseball · May 8, 2009

54 reports on 42 days since 1974 · #43 of 491 Missouri places

Hail map · Potosi

Potosi Bonne Terre Park Hills De Soto Farmington 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
54 most recent reports with a location; Washington County is shaded. Open street map

For homeowners

Concerned about your roof after hail?

Send a request to Moxisync Labs for review. The latest hail report in Potosi is from March 30, 2025. We’re building local roofer coverage. Submitting a request does not guarantee a quote or book an inspection.

Phone line opening soon

What would a claim cost you? Try the hail claim calculator

Roofer? Get hail alerts for your area with StormScope

What the record says about Potosi

The latest hail report in and around Potosi is from March 30, 2025, 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 March 30, 2025.

Over the 20 years 2006–2025, Potosi logged 26 reports on 21 hail days, about 1.3 reports a year. That is 2.6 times the median Missouri town on this site (0.5 a year) and ranks #43 of 491 Missouri cities and towns on this site for all-time reports. Potosi accounts for 31% of the 174 reports filed in Washington County.

4% of reports with a size were 2 inches (hen egg) or larger, against 5% for the median Missouri town on this site. The largest hail on record here is 2.75 in (baseball) on May 8, 2009 near 0.79 NNW Springtown.

Reports were down 82% in 2016–2025 (4) compared with 2006–2015 (22). The busiest year was 2006, with 6 reports on 4 days. Hail here peaks in April (33% of reports); 67% fall between April and June.

Reports a year 2006–2025 average

  • Potosi 1.3
  • Washington County 5.4
  • Median Missouri town on this site 0.5

Hail days 2006–2025

  • Potosi 21
  • Washington County 57
  • Median Missouri town on this site 9

Share 2 in or larger of sized reports

  • Potosi 4%
  • Washington County 6%
  • Median Missouri town on this site 5%

Hail over time

0246 1974: 1 reports, largest 1.75 in 1976: 2 reports, largest 2.25 in 1978: 1 reports, largest 1.00 in 1980: 1 reports, largest 0.75 in 1980 1990 1991: 1 reports, largest 1.00 in 1996: 3 reports, largest 1.00 in 1997: 2 reports, largest 1.00 in 1998: 1 reports, largest 0.75 in 1999: 1 reports, largest 1.00 in 2000: 1 reports, largest 0.75 in 2000 2002: 2 reports, largest 1.75 in 2003: 2 reports, largest 1.75 in 2004: 5 reports, largest 1.75 in 2005: 5 reports, largest 1.00 in 2006: 6 reports, largest 1.25 in 2007: 3 reports, largest 1.25 in 2008: 2 reports, largest 0.88 in 2009: 4 reports, largest 2.75 in 2010 2011: 4 reports, largest 1.75 in 2012: 1 reports, largest 1.25 in 2014: 1 reports, largest 1.25 in 2015: 1 reports, largest 0.88 in 2016: 1 reports, largest 1.25 in 2018: 1 reports, largest 1.00 in 2019: 1 reports, largest 1.50 in 2020 2025: 1 reports, largest 1.00 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.
05101520 Jan February: 2 reports (4%) Feb March: 9 reports (17%) Mar April: 18 reports (33%) Apr May: 15 reports (28%) May June: 3 reports (6%) Jun July: 2 reports (4%) Jul August: 1 reports (2%) Aug September: 1 reports (2%) Sep October: 3 reports (6%) Oct Nov Dec
All 54 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 1 1
2024 0
2023 0
2022 0
2021 0
2020 0
2019 1 1
2018 1 1
2017 0

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Mar 30, 2025 1 1.00 in —

Largest hail on record

Largest hail reports in Potosi
Date Size Location County Time · source
May 8, 2009 2.75 inbaseball 0.79 NNW Springtown Washington 08:34 local · NCEI
Mar 20, 1976 2.25 inhen egg — Washington 12:50 local · NCEI
May 25, 2011 1.75 ingolf ball 0.3 W Springtown Washington 15:02 local · NCEI
May 26, 2004 1.75 ingolf ball Potosi Washington 18:30 local · NCEI
May 4, 2003 1.75 ingolf ball 5 S Potosi Washington 22:35 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 Potosi
Date Size Location County Time · source
Mar 30, 2025 1.00 inquarter 0.88 SE Potosi Washington 13:04 local · NCEI
Mar 24, 2019 1.50 inping pong ball 0.25 NW Springtown Washington 17:22 local · NCEI
Apr 3, 2018 1.00 inquarter 1.91 NNE Springtown Washington 13:48 local · NCEI
May 11, 2016 1.25 inhalf dollar 2.18 NW Mineral Pt Washington 17:03 local · NCEI
Apr 7, 2015 0.88 innickel 0.79 WSW Potosi Wshngtn Co Ar Washington 13:00 local · NCEI
May 9, 2014 1.25 inhalf dollar 0.67 SSW Potosi Wshngtn Co Ar Washington 12:44 local · NCEI
Sep 6, 2012 1.25 inhalf dollar 0.67 NW Springtown Washington 14:09 local · NCEI
Jun 21, 2011 0.88 innickel 0.69 NNW Springtown Washington 13:12 local · NCEI
May 25, 2011 1.75 ingolf ball 0.3 W Springtown Washington 15:02 local · NCEI
May 13, 2011 1.50 inping pong ball 1.12 WSW Potosi Wshngtn Co Ar Washington 13:21 local · NCEI
May 13, 2011 0.75 inpenny 0.58 NNW Springtown Washington 13:19 local · NCEI
Jun 8, 2009 0.88 innickel 1.96 WNW Mineral Pt Washington 18:05 local · NCEI

Hail history near Potosi

Questions about hail in Potosi

How often does it hail in Potosi, Missouri?

54 hail reports have been logged in and within about 5 km (3 miles) of Potosi since 1974. Over the 20 years 2006–2025 that averages 1.3 reports a year. That ranks #43 of 491 Missouri places by number of reports.

When is hail season in Potosi?

Most reports come in April, May, March. April alone accounts for 33% of all reports.

What is the largest hail recorded in Potosi?

2.75 in (baseball size) on May 8, 2009 near 0.79 NNW Springtown. 4% of reports here were 2 inches or larger.

When did it last hail in Potosi?

The most recent report in this data is from March 30, 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 Potosi 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 March 30, 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.