Hail history for Sleepy Hollow, Wyoming
NOAA hail reports in and within about 5 km (3 miles) of Sleepy Hollow since 2001, with preliminary reports to November 3, 2026.
Readout · Sleepy Hollow
- Last hail
- Jul 17, 2023
- 1.75 in, golf ball size
- Hail days, last 5 years
- 1
- since Nov 3, 2021 · 2 reports
- Largest ever
- 1.75 in
- golf ball · Jul 17, 2023
10 reports on 8 days since 2001 · #59 of 61 Wyoming places
Hail map · Sleepy Hollow
- 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 Sleepy Hollow is from July 17, 2023. A local roofer can check and document it at no cost.
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What the record says about Sleepy Hollow
The latest hail report in and around Sleepy Hollow is from July 17, 2023, 1.75 in (golf ball size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.75 in on July 17, 2023.
Over the 20 years 2006–2025, Sleepy Hollow logged 9 reports on 7 hail days, about 0.5 reports a year. That is 31% less than the median Wyoming town on this site (0.7 a year) and ranks #59 of 61 Wyoming cities and towns on this site for all-time reports. Sleepy Hollow accounts for 2% of the 591 reports filed in Campbell 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 July 17, 2023 near 6 SE Gillette.
Reports were up 250% in 2016–2025 (7) compared with 2006–2015 (2). The busiest year was 2023, with 2 reports on 1 day. Hail here peaks in July (50% of reports); 50% fall between April and June.
Reports a year 2006–2025 average
- Sleepy Hollow 0.5
- Campbell County 21.1
- Median Wyoming town on this site 0.7
Hail days 2006–2025
- Sleepy Hollow 7
- Campbell County 183
- Median Wyoming town on this site 11
Share 2 in or larger of sized reports
- Sleepy Hollow 0%
- Campbell County 7%
- 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 | 1 | 1 | |||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 2 | 2 | |||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jul 17, 2023 | 2 | 1.75 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jul 17, 2023 | 1.75 ingolf ball | 6 SE Gillette | Campbell | 17:45 local · NCEI |
| Jul 17, 2023 | 1.75 ingolf ball | 8.05 SE Gillette | Campbell | 17:20 local · NCEI |
| Jul 17, 2019 | 1.75 ingolf ball | 6 SE Gillette | Campbell | 16:15 local · NCEI |
| Jun 28, 2016 | 1.50 inping pong ball | 5 SE Gillette | Campbell | 12:36 local · NCEI |
| May 20, 2020 | 1.00 inquarter | 8.05 SE Gillette | Campbell | 15:20 local · NCEI |
Size of every report
- Under 1 in 1 10%
- 1–2 in 9 90%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jul 17, 2023 | 1.75 ingolf ball | 6 SE Gillette | Campbell | 17:45 local · NCEI |
| Jul 17, 2023 | 1.75 ingolf ball | 8.05 SE Gillette | Campbell | 17:20 local · NCEI |
| May 20, 2020 | 1.00 inquarter | 8.05 SE Gillette | Campbell | 15:20 local · NCEI |
| Jul 17, 2019 | 1.75 ingolf ball | 6 SE Gillette | Campbell | 16:15 local · NCEI |
| Jul 21, 2018 | 1.00 inquarter | 8.05 SE Gillette | Campbell | 16:14 local · NCEI |
| Jul 21, 2018 | 1.00 inquarter | 5.4 SE Gillette | Campbell | 16:02 local · NCEI |
| Jun 28, 2016 | 1.50 inping pong ball | 5 SE Gillette | Campbell | 12:36 local · NCEI |
| May 17, 2013 | 1.00 inquarter | 5.23 SE Gillette | Campbell | 16:20 local · NCEI |
| May 28, 2007 | 0.88 innickel | 6 SE Gillette | Campbell | 14:55 local · NCEI |
| Jun 27, 2001 | 1.00 inquarter | 6 SE Gillette | Campbell | 20:20 local · NCEI |
Hail history near Sleepy Hollow
- Gillette 7 km · 82
- Moorcroft 39 km · 23
- Pine Haven 51 km · 23
- Wright 54 km · 24
Questions about hail in Sleepy Hollow
How often does it hail in Sleepy Hollow, Wyoming?
10 hail reports have been logged in and within about 5 km (3 miles) of Sleepy Hollow since 2001. Over the 20 years 2006–2025 that averages 0.5 reports a year. That ranks #59 of 61 Wyoming places by number of reports.
When is hail season in Sleepy Hollow?
Most reports come in July, May, June. July alone accounts for 50% of all reports.
What is the largest hail recorded in Sleepy Hollow?
1.75 in (golf ball size) on July 17, 2023 near 6 SE Gillette. 0% of reports here were 2 inches or larger.
When did it last hail in Sleepy Hollow?
The most recent report in this data is from July 17, 2023 (1.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Sleepy Hollow 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 17, 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.