Hail History

Hail history for St. Marys, Kansas

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

Readout · St. Marys

Last hail
May 13, 2016
0.88 in, nickel size
Hail days, last 5 years
0
since Nov 3, 2021 · 0 reports
Largest ever
4.00 in
grapefruit · May 19, 1960

29 reports on 14 days since 1960 · #292 of 612 Kansas places

Hail map · St. Marys

St. Marys Delia Belvue Rossville Emmett Wamego 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
29 most recent reports with a location; Pottawatomie County is shaded. Open street map

For homeowners

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Hail bruises shingles and cracks seals in ways you can't see from the ground, and most insurers set a claim deadline after the storm. The latest hail report in St. Marys is from May 13, 2016. A local roofer can check and document it at no cost.

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What the record says about St. Marys

The latest hail report in and around St. Marys is from May 13, 2016, 0.88 in (nickel size). There has been no hail report here in the five years since November 3, 2021.

Over the 20 years 2006–2025, St. Marys logged 15 reports on 5 hail days, about 0.8 reports a year. That is 15% more than the median Kansas town on this site (0.7 a year) and ranks #292 of 612 Kansas cities and towns on this site for all-time reports. St. Marys accounts for 7% of the 410 reports filed in Pottawatomie County.

10% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median Kansas town on this site. The largest hail on record here is 4.00 in (grapefruit) on May 19, 1960.

Reports were down 85% in 2016–2025 (2) compared with 2006–2015 (13). The busiest year was 2011, with 8 reports on 2 days. Hail here peaks in April (48% of reports); 100% fall between April and June.

Reports a year 2006–2025 average

  • St. Marys 0.8
  • Pottawatomie County 11.3
  • Median Kansas town on this site 0.7

Hail days 2006–2025

  • St. Marys 5
  • Pottawatomie County 77
  • Median Kansas town on this site 10

Share 2 in or larger of sized reports

  • St. Marys 10%
  • Pottawatomie County 7%
  • Median Kansas town on this site 7%

Hail over time

02468 1960: 1 reports, largest 4.00 in 1960 1970 1980: 1 reports, largest 1.75 in 1980 1984: 1 reports, largest 1.75 in 1990 1992: 1 reports, largest 0.75 in 1998: 1 reports, largest 0.75 in 2000: 1 reports, largest 0.75 in 2000 2001: 5 reports, largest 1.25 in 2003: 2 reports, largest 0.88 in 2005: 1 reports, largest 1.00 in 2009: 2 reports, largest 2.75 in 2010 2011: 8 reports, largest 1.75 in 2014: 3 reports, largest 1.75 in 2016: 2 reports, largest 0.88 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.
051015 Jan Feb Mar April: 14 reports (48%) Apr May: 10 reports (34%) May June: 5 reports (17%) Jun Jul Aug Sep Oct Nov Dec
All 29 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 St. Marys
Date Size Location County Time · source
May 19, 1960 4.00 ingrapefruit — Shawnee 18:15 local · NCEI
May 15, 2009 2.75 inbaseball 0.69 S St Marys Pottawatomie 14:30 local · NCEI
May 15, 2009 2.00 inhen egg 0.69 S St Marys Pottawatomie 14:20 local · NCEI
Apr 2, 2014 1.75 ingolf ball 5.59 NW Rossville Shawnee 21:45 local · NCEI
May 21, 2011 1.75 ingolf ball 0.69 S St Marys Pottawatomie 17:48 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 St. Marys
Date Size Location County Time · source
May 13, 2016 0.88 innickel 0.87 SE St Marys Pottawatomie 13:06 local · NCEI
May 13, 2016 0.75 inpenny 0.69 N St Marys Pottawatomie 13:05 local · NCEI
Apr 2, 2014 1.00 inquarter 0.87 NE St Marys Pottawatomie 21:46 local · NCEI
Apr 2, 2014 1.75 ingolf ball 5.59 NW Rossville Shawnee 21:45 local · NCEI
Apr 2, 2014 1.25 inhalf dollar 0.69 S St Marys Pottawatomie 21:40 local · NCEI
May 21, 2011 1.25 inhalf dollar 0.87 NE St Marys Pottawatomie 18:22 local · NCEI
May 21, 2011 1.75 ingolf ball 0.69 S St Marys Pottawatomie 17:48 local · NCEI
May 21, 2011 1.75 ingolf ball 0.69 S St Marys Pottawatomie 17:46 local · NCEI
May 21, 2011 1.00 inquarter 0.69 S St Marys Pottawatomie 17:46 local · NCEI
Apr 3, 2011 1.75 ingolf ball 0.69 S St Marys Pottawatomie 17:45 local · NCEI
Apr 3, 2011 0.75 inpenny 0.87 NE St Marys Pottawatomie 17:45 local · NCEI
Apr 3, 2011 1.75 ingolf ball 0.87 SW St Marys Pottawatomie 17:43 local · NCEI

Hail history near St. Marys

Questions about hail in St. Marys

How often does it hail in St. Marys, Kansas?

29 hail reports have been logged in and within about 5 km (3 miles) of St. Marys since 1960. Over the 20 years 2006–2025 that averages 0.8 reports a year. That ranks #292 of 612 Kansas places by number of reports.

When is hail season in St. Marys?

Most reports come in April, May, June. April alone accounts for 48% of all reports.

What is the largest hail recorded in St. Marys?

4.00 in (grapefruit size) on May 19, 1960. 10% of reports here were 2 inches or larger.

When did it last hail in St. Marys?

The most recent report in this data is from May 13, 2016 (0.88 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

How many hail storms has St. Marys had in the last five years?

None: there has been no hail report in and within about 5 km (3 miles) of St. Marys since November 3, 2021. The last one was on May 13, 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.