Hail history for Sweetwater County, Wyoming
Every NOAA hail report filed in Sweetwater County since 1980, with preliminary National Weather Service reports to November 3, 2026.
Readout · Sweetwater County
- Last hail
- May 26, 2023
- 1.00 in, quarter size
- Hail days, last 5 years
- 1
- since Nov 3, 2021 · 1 report
- Largest ever
- 1.75 in
- golf ball · Apr 25, 2009
13 reports on 13 days since 1980 · #22 of 22 Wyoming counties
Hail map · Sweetwater 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 Sweetwater County
The latest hail report in Sweetwater County is from May 26, 2023, 1.00 in (quarter size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.00 in on May 26, 2023.
Over the 20 years 2006–2025, Sweetwater County logged 5 reports on 5 hail days, about 0.3 reports a year. That is 6% of the median Wyoming county (4.5 a year) and ranks #22 of 22 Wyoming counties for all-time reports. Sweetwater County holds 0% of all 4,952 hail reports in Wyoming.
0% 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 1.75 in (golf ball) on April 25, 2009 near 1.16 W Red Desert.
The busiest year was 2004, with 2 reports on 2 days. Hail here peaks in June (31% of reports); 54% fall between April and June.
Reports a year 2006–2025 average
- Sweetwater County 0.3
- Median Wyoming county 4.5
Hail days 2006–2025
- Sweetwater County 5
- Median Wyoming county 55.5
Share 2 in or larger of sized reports
- Sweetwater County 0%
- Median Wyoming county 5%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 1 | 1 | |||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| May 26, 2023 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Apr 25, 2009 | 1.75 ingolf ball | 1.16 W Red Desert | $700K | 15:25 local · NCEI |
| May 26, 2023 | 1.00 inquarter | 2.67 WNW Winton Jct | — | 13:20 local · NCEI |
| May 11, 2018 | 1.00 inquarter | 0.5 NW Wamsutter | — | 15:15 local · NCEI |
| Jun 12, 2016 | 1.00 inquarter | Green River | — | 13:45 local · NCEI |
| Jun 20, 2004 | 1.00 inquarter | Green River | — | 15:18 local · NCEI |
Size of every report
- Under 1 in 7 54%
- 1–2 in 6 46%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| May 26, 2023 | 1.00 inquarter | 2.67 WNW Winton Jct | — | 13:20 local · NCEI |
| May 11, 2018 | 1.00 inquarter | 0.5 NW Wamsutter | — | 15:15 local · NCEI |
| Jun 12, 2016 | 1.00 inquarter | Green River | — | 13:45 local · NCEI |
| Apr 25, 2009 | 1.75 ingolf ball | 1.16 W Red Desert | $700K | 15:25 local · NCEI |
| Oct 20, 2006 | 0.75 inpenny | 1 WNW Rock Spgs | — | 16:40 local · NCEI |
| Jun 20, 2004 | 1.00 inquarter | Green River | — | 15:18 local · NCEI |
| Jun 18, 2004 | 1.00 inquarter | Point Of Rocks | — | 21:39 local · NCEI |
| Jul 25, 2003 | 0.75 inpenny | 20 S Green River | — | 13:30 local · NCEI |
| Jul 6, 2001 | 0.75 inpenny | 7 W Rock Spgs | — | 14:29 local · NCEI |
| Jun 21, 1998 | 0.75 inpenny | 22 SW Green River | — | 13:55 local · NCEI |
| Jul 12, 1989 | 0.75 inpenny | — | — | 18:00 local · NCEI |
| Jul 21, 1987 | 0.75 inpenny | — | — | 19:15 local · NCEI |
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 |
|---|---|---|---|
| Green River | 2 | 2 | Jun 12, 2016 |
| Arrowhead Springs | 1 | 1 | Jul 12, 1989 |
| Bairoil | 1 | 1 | Aug 8, 1980 |
| North Rock Springs | 1 | 1 | May 26, 2023 |
| Point of Rocks | 1 | 1 | Jun 18, 2004 |
| Purple Sage | 1 | 1 | Jul 6, 2001 |
| Rock Springs | 1 | 1 | Oct 20, 2006 |
| Wamsutter | 1 | 1 | May 11, 2018 |
Questions about hail in Sweetwater County
How often does it hail in Sweetwater County, Wyoming?
13 hail reports have been logged in Sweetwater County since 1980. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #22 of 22 Wyoming counties by number of reports.
When is hail season in Sweetwater County?
Most reports come in June, July, May. June alone accounts for 31% of all reports.
What is the largest hail recorded in Sweetwater County?
1.75 in (golf ball size) on April 25, 2009 near 1.16 W Red Desert. 0% of reports here were 2 inches or larger.
When did it last hail in Sweetwater County?
The most recent report in this data is from May 26, 2023 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Sweetwater County had in the last five years?
1 separate days with hail reports since November 3, 2021, adding up to 1 reports. The most recent was May 26, 2023.
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.