Hail History

Hail history for Johnson County, Wyoming

Every NOAA hail report filed in Johnson County since 1961, with preliminary National Weather Service reports to November 3, 2026.

Readout · Johnson County

Last hail
Jun 27, 2026
1.75 in, golf ball size
Hail days, last 5 years
11
since Nov 3, 2021 · 11 reports
Largest ever
3.00 in
teacup · Jun 10, 2014

153 reports on 114 days since 1961 · #11 of 22 Wyoming counties

Hail map · Johnson County

Buffalo Kaycee 25 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
148 most recent reports with a location. Dot size and colour follow hail size. Open street map

For homeowners

Roof damage after hail? Get a free inspection

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 Johnson County is from June 27, 2026. A local roofer can check and document it at no cost.

Phone line opening soon

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

Preview: this form is not connected yet. Nothing you enter is sent or stored.

Roofer? Get hail alerts for your area with StormScope

What the record says about Johnson County

The latest hail report in Johnson County is from June 27, 2026, 1.75 in (golf ball size). Since November 3, 2021 there have been 11 separate hail days; the biggest stones in that time were 2.75 in on June 23, 2023.

Over the 20 years 2006–2025, Johnson County logged 103 reports on 77 hail days, about 5.2 reports a year. That is 14% more than the median Wyoming county (4.5 a year) and ranks #11 of 22 Wyoming counties for all-time reports. Johnson County holds 3% of all 4,952 hail reports in Wyoming.

6% of reports with a size were 2 inches (hen egg) or larger, against 5% for the median Wyoming county. The largest hail on record here is 3.00 in (teacup) on June 10, 2014 near 3.35 W Sussex.

Reports were down 25% in 2016–2025 (44) compared with 2006–2015 (59). The busiest year was 2013, with 14 reports on 10 days. Hail here peaks in June (35% of reports); 54% fall between April and June.

Reports a year 2006–2025 average

  • Johnson County 5.2
  • Median Wyoming county 4.5

Hail days 2006–2025

  • Johnson County 77
  • Median Wyoming county 55.5

Share 2 in or larger of sized reports

  • Johnson County 6%
  • Median Wyoming county 5%

Hail over time

051015 1961: 1 reports, largest 1.00 in 1962: 1 reports, largest 2.00 in 1965: 1 reports, largest 1.00 in 1966: 1 reports, largest 1.00 in 1970 1976: 1 reports, largest 1.75 in 1979: 1 reports, largest 0.75 in 1980 1982: 1 reports, largest 0.75 in 1984: 3 reports, largest 1.50 in 1987: 3 reports, largest 1.50 in 1990: 1 reports, largest 1.75 in 1990 1993: 3 reports, largest 1.75 in 1994: 1 reports, largest 0.75 in 1995: 1 reports, largest 1.75 in 1998: 4 reports, largest 1.25 in 1999: 3 reports, largest 1.50 in 2000: 6 reports, largest 1.75 in 2000 2001: 7 reports, largest 1.75 in 2002: 3 reports, largest 1.50 in 2003: 3 reports, largest 1.75 in 2004: 2 reports, largest 0.88 in 2005: 2 reports, largest 2.25 in 2006: 3 reports, largest 2.75 in 2007: 8 reports, largest 1.75 in 2008: 7 reports, largest 1.25 in 2009: 8 reports, largest 2.00 in 2010: 4 reports, largest 2.75 in 2010 2011: 2 reports, largest 1.00 in 2013: 14 reports, largest 1.75 in 2014: 4 reports, largest 3.00 in 2015: 9 reports, largest 1.75 in 2016: 8 reports, largest 2.75 in 2017: 1 reports, largest 2.50 in 2018: 13 reports, largest 1.75 in 2019: 8 reports, largest 1.75 in 2020: 2 reports, largest 1.75 in 2020 2021: 2 reports, largest 1.00 in 2022: 2 reports, largest 1.25 in 2023: 3 reports, largest 2.75 in 2024: 1 reports, largest 1.00 in 2025: 4 reports, largest 1.50 in 2026: 1 reports, largest 1.75 in
Reports per year, 1961–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0204060 Jan Feb Mar April: 1 reports (1%) Apr May: 27 reports (18%) May June: 54 reports (35%) Jun July: 54 reports (35%) Jul August: 16 reports (10%) Aug September: 1 reports (1%) Sep Oct Nov Dec
All 153 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 1 1
2025 121 4
2024 1 1
2023 21 3
2022 2 2
2021 11 2
2020 2 2
2019 161 8
2018 157 13
2017 1 1

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Jun 27, 2026 1 1.75 in —
Sep 12, 2025 1 1.00 in —
Jul 29, 2025 1 1.50 in —
Jul 23, 2025 1 0.75 in —
Jun 14, 2025 1 1.25 in —
Aug 19, 2024 1 1.00 in —
Jul 6, 2023 1 1.75 in —
Jun 28, 2023 1 1.50 in —
Jun 23, 2023 1 2.75 in —
Jun 24, 2022 1 1.00 in —
Jun 17, 2022 1 1.25 in —

Largest hail on record

Largest hail reports in Johnson County
Date Size Location Damage Time · source
Jun 10, 2014 3.00 inteacup 3.35 W Sussex $5K 15:28 local · NCEI
Jun 23, 2023 2.75 inbaseball 1 SW Barnum — 13:15 local · NCEI
May 21, 2016 2.75 inbaseball 18.62 E Buffalo — 18:08 local · NCEI
Jun 20, 2010 2.75 inbaseball 5.76 NNW Lake De Smet $15K 14:00 local · NCEI
Jun 30, 2006 2.75 inbaseball 5 SE Linch — 22:29 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Johnson County
Date Size Location Time · source
Jun 27, 2026 1.75 ingolf ball 12 S Buffalo 12:10 local · NCEI
Sep 12, 2025 1.00 inquarter 13 SSE Buffalo 15:50 local · NCEI
Jul 29, 2025 1.50 inping pong ball 8 S Buffalo 16:25 local · NCEI
Jul 23, 2025 0.75 inpenny Kaycee 16:19 local · NCEI
Jun 14, 2025 1.25 inhalf dollar 19 SSE Buffalo 18:54 local · NCEI
Aug 19, 2024 1.00 inquarter 5 SE Linch 19:10 local · NCEI
Jul 6, 2023 1.75 ingolf ball 3 WSW Buffalo 13:10 local · NCEI
Jun 28, 2023 1.50 inping pong ball 8.24 ENE Kaycee Kuiper Arpt 12:35 local · NCEI
Jun 23, 2023 2.75 inbaseball 1 SW Barnum 13:15 local · NCEI
Jun 24, 2022 1.00 inquarter 1 SW Barnum 14:50 local · NCEI
Jun 17, 2022 1.25 inhalf dollar 11.65 ENE Lake De Smet 15:48 local · NCEI
Jul 9, 2021 1.00 inquarter 14 E Buffalo 16:36 local · NCEI

Cities and towns in Johnson County

PlaceReportsLargest
Buffalo181.75 in
Kaycee151.75 in

Questions about hail in Johnson County

How often does it hail in Johnson County, Wyoming?

153 hail reports have been logged in Johnson County since 1961. Over the 20 years 2006–2025 that averages 5.2 reports a year. That ranks #11 of 22 Wyoming counties by number of reports.

When is hail season in Johnson County?

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

What is the largest hail recorded in Johnson County?

3.00 in (teacup size) on June 10, 2014 near 3.35 W Sussex. 6% of reports here were 2 inches or larger.

When did it last hail in Johnson County?

The most recent report in this data is from June 27, 2026 (1.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

11 separate days with hail reports since November 3, 2021, adding up to 11 reports. The most recent was June 27, 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.