Hail History

Hail history for Mount Vernon, Ohio

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

Readout · Mount Vernon

Last hail
Mar 22, 2026
1.00 in, quarter size
Hail days, last 5 years
2
since Nov 3, 2021 · 4 reports
Largest ever
1.75 in
golf ball · Jul 7, 1985

32 reports on 25 days since 1974 · #35 of 246 Ohio places

Hail map · Mount Vernon

Mount Vernon Fredericktown 5 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
32 most recent reports with a location; Knox County is shaded. Open street map

For homeowners

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What the record says about Mount Vernon

The latest hail report in and around Mount Vernon is from March 22, 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 March 22, 2026.

Over the 20 years 2006–2025, Mount Vernon logged 17 reports on 12 hail days, about 0.8 reports a year. That is 89% more than the median Ohio town on this site (0.5 a year) and ranks #35 of 246 Ohio cities and towns on this site for all-time reports. Mount Vernon accounts for 40% of the 80 reports filed in Knox County.

0% of reports with a size were 2 inches (hen egg) or larger, against 0% for the median Ohio town on this site. The largest hail on record here is 1.75 in (golf ball) on July 7, 1985.

Reports were down 87% in 2016–2025 (2) compared with 2006–2015 (15). The busiest year was 2012, with 4 reports on 3 days. Hail here peaks in July (25% of reports); 50% fall between April and June.

Reports a year 2006–2025 average

  • Mount Vernon 0.8
  • Knox County 2.0
  • Median Ohio town on this site 0.5

Hail days 2006–2025

  • Mount Vernon 12
  • Knox County 27
  • Median Ohio town on this site 8

Share 2 in or larger of sized reports

  • Mount Vernon 0%
  • Knox County 0%
  • Median Ohio town on this site 0%

Hail over time

01234 1974: 1 reports, largest 1.00 in 1980 1985: 1 reports, largest 1.75 in 1990 1991: 1 reports, largest 0.75 in 1997: 1 reports, largest 0.88 in 1998: 2 reports, largest 1.00 in 2000: 2 reports, largest 0.88 in 2000 2002: 1 reports, largest 0.75 in 2003: 2 reports, largest 0.88 in 2004: 2 reports, largest 0.88 in 2006: 2 reports, largest 0.88 in 2008: 3 reports, largest 0.88 in 2010: 2 reports, largest 1.25 in 2010 2011: 1 reports, largest 1.25 in 2012: 4 reports, largest 1.00 in 2013: 3 reports, largest 1.25 in 2020 2024: 2 reports, largest 1.00 in 2026: 2 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.
02468 Jan Feb March: 5 reports (16%) Mar April: 4 reports (13%) Apr May: 7 reports (22%) May June: 5 reports (16%) Jun July: 8 reports (25%) Jul August: 3 reports (9%) Aug Sep Oct Nov Dec
All 32 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 2 2
2025 0
2024 2 2
2023 0
2022 0
2021 0
2020 0
2019 0
2018 0
2017 0

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Mar 22, 2026 2 1.00 in —
Mar 30, 2024 2 1.00 in —

Largest hail on record

Largest hail reports in Mount Vernon
Date Size Location County Damage Time · source
Jul 7, 1985 1.75 ingolf ball — Knox — 18:10 local · NCEI
Jun 12, 2013 1.25 inhalf dollar Mt Vernon Knox — 20:58 local · NCEI
Apr 20, 2011 1.25 inhalf dollar Mt Vernon Knox $10K 01:46 local · NCEI
May 7, 2010 1.25 inhalf dollar Mt Vernon Knox $5K 21:58 local · NCEI
May 7, 2010 1.25 inhalf dollar Mt Vernon Knox $5K 21:58 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 Mount Vernon
Date Size Location County Damage Time · source
Mar 22, 2026 1.00 inquarter 0.51 SSW Mt Vernon Knox — 19:35 local · NCEI
Mar 22, 2026 0.75 inpenny 0.83 ENE South Mt Vernon Knox — 19:34 local · NCEI
Mar 30, 2024 1.00 inquarter 0.95 WNW Mt Vernon Knox — 16:34 local · NCEI
Mar 30, 2024 0.88 innickel 0.9 SE Mt Vernon Knox — 16:24 local · NCEI
Jul 10, 2013 0.75 inpenny 3 NW Mt Vernon Knox — 15:05 local · NCEI
Jun 12, 2013 1.25 inhalf dollar Mt Vernon Knox — 20:58 local · NCEI
Jun 12, 2013 0.75 inpenny Mt Vernon Knox — 20:50 local · NCEI
Jul 4, 2012 0.75 inpenny Mt Vernon Knox — 21:38 local · NCEI
Jul 4, 2012 1.00 inquarter Mt Vernon Knox — 21:36 local · NCEI
May 28, 2012 0.88 innickel Mt Vernon Knox — 14:55 local · NCEI
Mar 15, 2012 1.00 inquarter Mt Vernon Knox — 03:32 local · NCEI
Apr 20, 2011 1.25 inhalf dollar Mt Vernon Knox $10K 01:46 local · NCEI

Hail history near Mount Vernon

Questions about hail in Mount Vernon

How often does it hail in Mount Vernon, Ohio?

32 hail reports have been logged in and within about 5 km (3 miles) of Mount Vernon since 1974. Over the 20 years 2006–2025 that averages 0.8 reports a year. That ranks #35 of 246 Ohio places by number of reports.

When is hail season in Mount Vernon?

Most reports come in July, May, March. July alone accounts for 25% of all reports.

What is the largest hail recorded in Mount Vernon?

1.75 in (golf ball size) on July 7, 1985. 0% of reports here were 2 inches or larger.

When did it last hail in Mount Vernon?

The most recent report in this data is from March 22, 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 Mount Vernon had in the last five years?

2 separate days with hail reports since November 3, 2021, adding up to 4 reports. The most recent was March 22, 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.