Hail History

Hail history for Rock, Kansas

NOAA hail reports in and within about 5 km (3 miles) of Rock since 1996, with preliminary reports to November 3, 2026.

Readout · Rock

Last hail
May 14, 2018
1.25 in, half dollar size
Hail days, last 5 years
0
since Nov 3, 2021 · 0 reports
Largest ever
1.75 in
golf ball · May 27, 2016

27 reports on 20 days since 1996 · #321 of 612 Kansas places

Hail map · Rock

Rock Udall New Salem Mulvane Atlanta Winfield Oxford 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
27 most recent reports with a location; Cowley County is shaded. Open street map

For homeowners

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What the record says about Rock

The latest hail report in and around Rock is from May 14, 2018, 1.25 in (half dollar size). There has been no hail report here in the five years since November 3, 2021.

Over the 20 years 2006–2025, Rock logged 12 reports on 8 hail days, about 0.6 reports a year. That is about the same as the median Kansas town on this site (0.7 a year) and ranks #321 of 612 Kansas cities and towns on this site for all-time reports. Rock accounts for 4% of the 727 reports filed in Cowley County.

0% 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 1.75 in (golf ball) on May 27, 2016 near 0.55 W Rock.

Reports held about level in 2016–2025 (6) compared with 2006–2015 (6). The busiest year was 1998, with 4 reports on 2 days. Hail here peaks in May (37% of reports); 70% fall between April and June.

Reports a year 2006–2025 average

  • Rock 0.6
  • Cowley County 17.1
  • Median Kansas town on this site 0.7

Hail days 2006–2025

  • Rock 8
  • Cowley County 105
  • Median Kansas town on this site 10

Share 2 in or larger of sized reports

  • Rock 0%
  • Cowley County 8%
  • Median Kansas town on this site 7%

Hail over time

01234 1996: 1 reports, largest 0.75 in 1997: 3 reports, largest 1.75 in 1998: 4 reports, largest 1.00 in 2000: 1 reports, largest 1.00 in 2000 2001: 2 reports, largest 1.00 in 2002: 1 reports, largest 0.75 in 2003: 1 reports, largest 0.75 in 2004: 1 reports, largest 1.00 in 2005: 1 reports, largest 1.75 in 2005 2008: 2 reports, largest 1.25 in 2009: 1 reports, largest 1.00 in 2010 2011: 2 reports, largest 1.00 in 2013: 1 reports, largest 1.00 in 2015 2016: 3 reports, largest 1.75 in 2017: 1 reports, largest 1.25 in 2018: 2 reports, largest 1.25 in 2020 2025
Reports per year, 1996–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
036912 Jan Feb Mar April: 2 reports (7%) Apr May: 10 reports (37%) May June: 7 reports (26%) Jun July: 3 reports (11%) Jul August: 2 reports (7%) Aug September: 1 reports (4%) Sep October: 1 reports (4%) Oct November: 1 reports (4%) Nov Dec
All 27 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 2 2
2017 1 1

Largest hail on record

Largest hail reports in Rock
Date Size Location County Time · source
May 27, 2016 1.75 ingolf ball 0.55 W Rock Cowley 15:37 local · NCEI
May 22, 2005 1.75 ingolf ball 6 NE Udall Cowley 22:12 local · NCEI
Jun 12, 1997 1.75 ingolf ball Rock Cowley 19:27 local · NCEI
May 14, 2018 1.25 inhalf dollar 0.88 SW Rock Cowley 18:40 local · NCEI
Aug 5, 2017 1.25 inhalf dollar 2.3 ENE Rock Cowley 16:09 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Rock
Date Size Location County Time · source
May 14, 2018 1.25 inhalf dollar 0.88 SW Rock Cowley 18:40 local · NCEI
May 14, 2018 0.75 inpenny 2.82 S Rock Cowley 18:33 local · NCEI
Aug 5, 2017 1.25 inhalf dollar 2.3 ENE Rock Cowley 16:09 local · NCEI
May 27, 2016 0.88 innickel 0.55 W Rock Cowley 16:01 local · NCEI
May 27, 2016 1.75 ingolf ball 0.55 W Rock Cowley 15:37 local · NCEI
May 27, 2016 1.00 inquarter 1.78 WNW Rock Cowley 15:36 local · NCEI
May 19, 2013 1.00 inquarter 0.88 SW Rock Cowley 16:05 local · NCEI
Jun 20, 2011 1.00 inquarter 2.83 WSW Rock Cowley 17:59 local · NCEI
Jun 18, 2011 0.75 inpenny 2.83 WSW Rock Cowley 20:00 local · NCEI
Jul 20, 2009 1.00 inquarter 2.83 WSW Rock Cowley 23:01 local · NCEI
May 31, 2008 1.00 inquarter 0.88 SW Rock Cowley 05:00 local · NCEI
May 31, 2008 1.25 inhalf dollar 0.88 SW Rock Cowley 04:54 local · NCEI

Hail history near Rock

Questions about hail in Rock

How often does it hail in Rock, Kansas?

27 hail reports have been logged in and within about 5 km (3 miles) of Rock since 1996. Over the 20 years 2006–2025 that averages 0.6 reports a year. That ranks #321 of 612 Kansas places by number of reports.

When is hail season in Rock?

Most reports come in May, June, July. May alone accounts for 37% of all reports.

What is the largest hail recorded in Rock?

1.75 in (golf ball size) on May 27, 2016 near 0.55 W Rock. 0% of reports here were 2 inches or larger.

When did it last hail in Rock?

The most recent report in this data is from May 14, 2018 (1.25 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

None: there has been no hail report in and within about 5 km (3 miles) of Rock since November 3, 2021. The last one was on May 14, 2018.

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.