Hail history for Rock River, Wyoming
NOAA hail reports in and within about 5 km (3 miles) of Rock River since 1989, with preliminary reports to November 5, 2026.
Readout · Rock River
- Last hail
- Jun 24, 2026
- 1.50 in, ping pong ball size
- Hail days, last 5 years
- 1
- since Nov 5, 2021 · 2 reports
- Largest ever
- 1.75 in
- golf ball · Aug 27, 2002
13 reports on 10 days since 1989 · #52 of 61 Wyoming places
Hail map · Rock River
- 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 Rock River
The latest hail report in and around Rock River is from June 24, 2026, 1.50 in (ping pong ball size). Since November 5, 2021 there has been one hail day; the biggest stones in that time were 1.50 in on June 24, 2026.
Over the 20 years 2006–2025, Rock River logged 8 reports on 6 hail days, about 0.4 reports a year. That is 38% less than the median Wyoming town on this site (0.7 a year) and ranks #52 of 61 Wyoming cities and towns on this site for all-time reports. Rock River accounts for 10% of the 131 reports filed in Albany County.
0% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median Wyoming town on this site. The largest hail on record here is 1.75 in (golf ball) on August 27, 2002 near Rock River.
Reports were up 200% in 2016–2025 (6) compared with 2006–2015 (2). The busiest year was 2019, with 4 reports on 2 days. Hail here peaks in June (38% of reports); 54% fall between April and June.
Reports a year 2006–2025 average
- Rock River 0.4
- Albany County 3.9
- Median Wyoming town on this site 0.7
Hail days 2006–2025
- Rock River 6
- Albany County 47
- Median Wyoming town on this site 11
Share 2 in or larger of sized reports
- Rock River 0%
- Albany County 5%
- Median Wyoming town on this site 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2 | 2 | |||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 4 | 4 | |||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 0 |
Hail days since Nov 5, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jun 24, 2026 | 2 | 1.50 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Aug 27, 2002 | 1.75 ingolf ball | Rock River | Albany | 18:00 local · NCEI |
| Apr 26, 1989 | 1.75 ingolf ball | — | Albany | 15:10 local · NCEI |
| Jun 24, 2026 | 1.50 inping pong ball | 0.69 S Rock River | Albany | 16:58 local · NCEI |
| Aug 13, 2021 | 1.25 inhalf dollar | 0.69 S Rock River | Albany | 18:09 local · NCEI |
| Jul 6, 2019 | 1.25 inhalf dollar | 1.55 E Rock River | Albany | 16:42 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 1 8%
- 1–2 in 12 92%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jun 24, 2026 | 1.50 inping pong ball | 0.69 S Rock River | Albany | 16:58 local · NCEI |
| Jun 24, 2026 | 1.00 inquarter | 0.69 S Rock River | Albany | 16:45 local · NCEI |
| Aug 13, 2021 | 1.25 inhalf dollar | 0.69 S Rock River | Albany | 18:09 local · NCEI |
| Jul 20, 2019 | 1.00 inquarter | 1.47 SSE Wilcox | Albany | 17:49 local · NCEI |
| Jul 6, 2019 | 0.88 innickel | 0.52 W Rock River | Albany | 16:45 local · NCEI |
| Jul 6, 2019 | 1.25 inhalf dollar | 1.55 E Rock River | Albany | 16:42 local · NCEI |
| Jul 6, 2019 | 1.25 inhalf dollar | 1.55 E Rock River | Albany | 16:42 local · NCEI |
| Jun 19, 2018 | 1.00 inquarter | 0.69 S Rock River | Albany | 11:30 local · NCEI |
| Jun 6, 2014 | 1.25 inhalf dollar | Rock River | Albany | 22:40 local · NCEI |
| Jun 6, 2010 | 1.00 inquarter | Rock River | Albany | 14:39 local · NCEI |
| Apr 19, 2005 | 1.00 inquarter | Rock River | Albany | 13:49 local · NCEI |
| Aug 27, 2002 | 1.75 ingolf ball | Rock River | Albany | 18:00 local · NCEI |
Hail history near Rock River
- Laramie 56 km · 39
Questions about hail in Rock River
How often does it hail in Rock River, Wyoming?
13 hail reports have been logged in and within about 5 km (3 miles) of Rock River since 1989. Over the 20 years 2006–2025 that averages 0.4 reports a year. That ranks #52 of 61 Wyoming places by number of reports.
When is hail season in Rock River?
Most reports come in June, July, April. June alone accounts for 38% of all reports.
What is the largest hail recorded in Rock River?
1.75 in (golf ball size) on August 27, 2002 near Rock River. 0% of reports here were 2 inches or larger.
When did it last hail in Rock River?
The most recent report in this data is from June 24, 2026 (1.50 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 5, 2026.
How many hail storms has Rock River had in the last five years?
1 separate days with hail reports since November 5, 2021, adding up to 2 reports. The most recent was June 24, 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.