Hail history for Glenrock, Wyoming
NOAA hail reports in and within about 5 km (3 miles) of Glenrock since 1991, with preliminary reports to November 3, 2026.
Readout · Glenrock
- Last hail
- Jul 14, 2023
- 1.00 in, quarter size
- Hail days, last 5 years
- 1
- since Nov 3, 2021 · 2 reports
- Largest ever
- 1.75 in
- golf ball · May 10, 2004
11 reports on 10 days since 1991 · #55 of 61 Wyoming places
Hail map · Glenrock
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
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 Glenrock is from July 14, 2023. A local roofer can check and document it at no cost.
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What the record says about Glenrock
The latest hail report in and around Glenrock is from July 14, 2023, 1.00 in (quarter size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.25 in on July 14, 2023.
Over the 20 years 2006–2025, Glenrock logged 6 reports on 5 hail days, about 0.3 reports a year. That is about half the median Wyoming town on this site (0.7 a year) and ranks #55 of 61 Wyoming cities and towns on this site for all-time reports. Glenrock accounts for 7% of the 160 reports filed in Converse 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 May 10, 2004 near 2 N Glenrock.
The busiest year was 2023, with 2 reports on 1 day. Hail here peaks in May (36% of reports); 55% fall between April and June.
Reports a year 2006–2025 average
- Glenrock 0.3
- Converse County 5.5
- Median Wyoming town on this site 0.7
Hail days 2006–2025
- Glenrock 5
- Converse County 70
- Median Wyoming town on this site 11
Share 2 in or larger of sized reports
- Glenrock 0%
- Converse County 11%
- 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 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 2 | 2 | |||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jul 14, 2023 | 2 | 1.25 in | — |
Largest hail on record
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| May 10, 2004 | 1.75 ingolf ball | 2 N Glenrock | Converse | — | 17:45 local · NCEI |
| Aug 19, 1997 | 1.75 ingolf ball | Glenrock | Converse | $2K | 04:20 local · NCEI |
| May 14, 1991 | 1.75 ingolf ball | — | Converse | — | 15:10 local · NCEI |
| May 19, 1999 | 1.50 inping pong ball | Glenrock | Converse | — | 18:30 local · NCEI |
| Jul 14, 2023 | 1.25 inhalf dollar | 1 WNW Glenrock | Converse | — | 13:25 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 0 0%
- 1–2 in 11 100%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| Jul 14, 2023 | 1.00 inquarter | Glenrock | Converse | — | 13:37 local · NCEI |
| Jul 14, 2023 | 1.25 inhalf dollar | 1 WNW Glenrock | Converse | — | 13:25 local · NCEI |
| Jul 26, 2018 | 1.25 inhalf dollar | 1.67 ENE Glenrock | Converse | — | 15:25 local · NCEI |
| Jun 12, 2017 | 1.00 inquarter | 1 SW Glenrock | Converse | — | 17:30 local · NCEI |
| May 3, 2007 | 1.00 inquarter | Glenrock | Converse | — | 14:56 local · NCEI |
| Jul 3, 2006 | 1.00 inquarter | Glenrock | Converse | — | 16:30 local · NCEI |
| May 10, 2004 | 1.75 ingolf ball | 2 N Glenrock | Converse | — | 17:45 local · NCEI |
| Jun 12, 1999 | 1.00 inquarter | Glenrock | Converse | — | 16:50 local · NCEI |
| May 19, 1999 | 1.50 inping pong ball | Glenrock | Converse | — | 18:30 local · NCEI |
| Aug 19, 1997 | 1.75 ingolf ball | Glenrock | Converse | $2K | 04:20 local · NCEI |
| May 14, 1991 | 1.75 ingolf ball | — | Converse | — | 15:10 local · NCEI |
Hail history near Glenrock
- Douglas 38 km · 39
- Casper 39 km · 29
- Vista West 48 km · 17
Questions about hail in Glenrock
How often does it hail in Glenrock, Wyoming?
11 hail reports have been logged in and within about 5 km (3 miles) of Glenrock since 1991. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #55 of 61 Wyoming places by number of reports.
When is hail season in Glenrock?
Most reports come in May, July, June. May alone accounts for 36% of all reports.
What is the largest hail recorded in Glenrock?
1.75 in (golf ball size) on May 10, 2004 near 2 N Glenrock. 0% of reports here were 2 inches or larger.
When did it last hail in Glenrock?
The most recent report in this data is from July 14, 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 Glenrock had in the last five years?
1 separate days with hail reports since November 3, 2021, adding up to 2 reports. The most recent was July 14, 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.