Hail history for Sheridan County, Wyoming
Every NOAA hail report filed in Sheridan County since 1961, with preliminary National Weather Service reports to November 3, 2026.
Readout · Sheridan County
- Last hail
- Sep 18, 2026
- 0.70 in, marble size · preliminary
- Hail days, last 5 years
- 15
- since Nov 3, 2021 · 32 reports
- Largest ever
- 3.00 in
- teacup · Jun 17, 1979
221 reports on 119 days since 1961 · #7 of 22 Wyoming counties
Hail map · Sheridan County
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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What the record says about Sheridan County
The latest hail report in Sheridan County is from September 18, 2026, 0.70 in (marble size). Since November 3, 2021 there have been 15 separate hail days; the biggest stones in that time were 2.75 in on July 11, 2023.
Over the 20 years 2006–2025, Sheridan County logged 144 reports on 67 hail days, about 7.2 reports a year. That is 59% more than the median Wyoming county (4.5 a year) and ranks #7 of 22 Wyoming counties for all-time reports. Sheridan County holds 4% of all 4,952 hail reports in Wyoming.
5% 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 17, 1979.
Reports held about level in 2016–2025 (70) compared with 2006–2015 (74). The busiest year was 2008, with 22 reports on 8 days. Hail here peaks in June (38% of reports); 54% fall between April and June.
Reports a year 2006–2025 average
- Sheridan County 7.2
- Median Wyoming county 4.5
Hail days 2006–2025
- Sheridan County 67
- Median Wyoming county 55.5
Share 2 in or larger of sized reports
- Sheridan County 5%
- Median Wyoming county 5%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2 | 2 | 2 | 6 | |||||||||
| 2025 | 2 | 2 | |||||||||||
| 2024 | 7 | 7 | |||||||||||
| 2023 | 4 | 7 | 1 | 12 | |||||||||
| 2022 | 5 | 5 | |||||||||||
| 2021 | 6 | 1 | 2 | 9 | |||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 2 | 7 | 7 | 16 | |||||||||
| 2018 | 1 | 2 | 2 | 3 | 8 | ||||||||
| 2017 | 4 | 1 | 5 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Sep 18, 2026 | 2 | 0.70 in | View |
| Jul 8, 2026 | 1 | 1.00 in | — |
| Jul 3, 2026 | 1 | 1.00 in | — |
| Jun 27, 2026 | 2 | 1.75 in | — |
| Jun 16, 2025 | 1 | 1.75 in | — |
| Jun 13, 2025 | 1 | 1.25 in | — |
| Sep 12, 2024 | 7 | 2.00 in | — |
| Aug 8, 2023 | 1 | 1.00 in | — |
| Jul 11, 2023 | 4 | 2.75 in | — |
| Jul 6, 2023 | 3 | 1.75 in | — |
| May 26, 2023 | 4 | 1.25 in | — |
| Jun 20, 2022 | 1 | 1.00 in | — |
| Jun 17, 2022 | 1 | 1.50 in | — |
| Jun 12, 2022 | 1 | 1.00 in | — |
| Jun 4, 2022 | 2 | 1.50 in | — |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Jun 17, 1979 | 3.00 inteacup | — | 18:00 local · NCEI |
| Jul 11, 2023 | 2.75 inbaseball | 9.04 N Leiter | 17:24 local · NCEI |
| Jul 11, 2023 | 2.75 inbaseball | 7.18 NE Acme | 16:38 local · NCEI |
| Jul 6, 2019 | 2.75 inbaseball | 15.2 N Leiter | 19:35 local · NCEI |
| Jun 20, 2010 | 2.75 inbaseball | 0.69 N Kleenburn | 15:07 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
- Under 1 in 75 34%
- 1–2 in 136 62%
- 2 in + 10 5%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Sep 18, 2026 | 0.70 inmarble | 1 E Banner | 22:42 UTC · NWS prelim. |
| Sep 18, 2026 | 0.70 inmarble | 1 W Story | 22:35 UTC · NWS prelim. |
| Jul 8, 2026 | 1.00 inquarter | 0.85 SE Ranchester | 15:02 local · NCEI |
| Jul 3, 2026 | 1.00 inquarter | 7.18 NE Acme | 17:23 local · NCEI |
| Jun 27, 2026 | 1.75 ingolf ball | 2.29 SSE Clearmont | 12:00 local · NCEI |
| Jun 27, 2026 | 1.00 inquarter | 2.55 WSW Verona | 11:00 local · NCEI |
| Jun 16, 2025 | 1.75 ingolf ball | 2.81 ENE Parkman | 17:00 local · NCEI |
| Jun 13, 2025 | 1.25 inhalf dollar | 2.85 NW Wakeley | 21:19 local · NCEI |
| Sep 12, 2024 | 1.00 inquarter | 0.98 W Ucross | 15:16 local · NCEI |
| Sep 12, 2024 | 1.25 inhalf dollar | 0.49 W Sheridan | 14:17 local · NCEI |
| Sep 12, 2024 | 1.25 inhalf dollar | 0.98 E Sheridan | 14:13 local · NCEI |
| Sep 12, 2024 | 2.00 inhen egg | 0.85 NE Sheridan | 14:10 local · NCEI |
Cities and towns in Sheridan County
| Place | Reports | Largest |
|---|---|---|
| Sheridan | 40 | 2.75 in |
| Story | 27 | 2.50 in |
| Ranchester | 18 | 1.75 in |
| Dayton | 13 | 1.75 in |
Smaller places with fewer than 10 reports
These places have too few reports for a page of their own, so their record lives here.
| Place | Reports | Hail days | Latest |
|---|---|---|---|
| Clearmont | 7 | 7 | Jun 27, 2026 |
| Parkman | 7 | 7 | Jun 16, 2025 |
| Big Horn | 6 | 6 | Jul 6, 2023 |
| Arvada | 2 | 1 | Jul 17, 2008 |
| Powder Horn | 2 | 2 | Jul 8, 2019 |
Questions about hail in Sheridan County
How often does it hail in Sheridan County, Wyoming?
221 hail reports have been logged in Sheridan County since 1961. Over the 20 years 2006–2025 that averages 7.2 reports a year. That ranks #7 of 22 Wyoming counties by number of reports.
When is hail season in Sheridan County?
Most reports come in June, July, May. June alone accounts for 38% of all reports.
What is the largest hail recorded in Sheridan County?
3.00 in (teacup size) on June 17, 1979. 5% of reports here were 2 inches or larger.
When did it last hail in Sheridan County?
The most recent report in this data is from September 18, 2026 (0.70 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Sheridan County had in the last five years?
15 separate days with hail reports since November 3, 2021, adding up to 32 reports. The most recent was September 18, 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.