Hail history for Holly, Colorado
NOAA hail reports in and within about 5 km (3 miles) of Holly since 1977, with preliminary reports to November 3, 2026.
Readout · Holly
- Last hail
- May 21, 2020
- 2.75 in, baseball size
- Hail days, last 5 years
- 0
- since Nov 3, 2021 · 0 reports
- Largest ever
- 3.50 in
- teacup · Aug 16, 1997
26 reports on 22 days since 1977 · #95 of 183 Colorado places
Hail map · Holly
- 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 Holly is from May 21, 2020. A local roofer can check and document it at no cost.
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What the record says about Holly
The latest hail report in and around Holly is from May 21, 2020, 2.75 in (baseball size). There has been no hail report here in the five years since November 3, 2021.
Over the 20 years 2006–2025, Holly logged 14 reports on 11 hail days, about 0.7 reports a year. That is 13% less than the median Colorado town on this site (0.8 a year) and ranks #95 of 183 Colorado cities and towns on this site for all-time reports. Holly accounts for 7% of the 367 reports filed in Prowers County.
19% of reports with a size were 2 inches (hen egg) or larger, against 8% for the median Colorado town on this site. The largest hail on record here is 3.50 in (teacup) on August 16, 1997 near 1 N Holly.
Reports were down 25% in 2016–2025 (6) compared with 2006–2015 (8). The busiest year was 1997, with 5 reports on 4 days. Hail here peaks in July (31% of reports); 42% fall between April and June.
Reports a year 2006–2025 average
- Holly 0.7
- Prowers County 10.0
- Median Colorado town on this site 0.8
Hail days 2006–2025
- Holly 11
- Prowers County 94
- Median Colorado town on this site 11
Share 2 in or larger of sized reports
- Holly 19%
- Prowers County 16%
- Median Colorado town on this site 8%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 2 | 2 | |||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 2 | 2 |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Aug 16, 1997 | 3.50 inteacup | 1 N Holly | Prowers | 20:32 local · NCEI |
| Aug 16, 1997 | 3.00 inteacup | 1 N Holly | Prowers | 20:25 local · NCEI |
| May 21, 2020 | 2.75 inbaseball | 0.88 NW Holly | Prowers | 15:28 local · NCEI |
| May 21, 2020 | 2.75 inbaseball | 1.09 W Holly | Prowers | 15:18 local · NCEI |
| Jul 31, 1977 | 2.75 inbaseball | — | Prowers | 18:00 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 6 23%
- 1–2 in 15 58%
- 2 in + 5 19%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| May 21, 2020 | 2.75 inbaseball | 0.88 NW Holly | Prowers | 15:28 local · NCEI |
| May 21, 2020 | 2.75 inbaseball | 1.09 W Holly | Prowers | 15:18 local · NCEI |
| Sep 19, 2019 | 1.50 inping pong ball | Holly | Prowers | 15:36 local · NCEI |
| Jun 22, 2018 | 1.50 inping pong ball | 1.38 S Holly | Prowers | 15:30 local · NCEI |
| May 10, 2017 | 1.00 inquarter | 0.88 NW Holly | Prowers | 17:38 local · NCEI |
| May 10, 2017 | 0.88 innickel | 3.45 N Holly | Prowers | 17:21 local · NCEI |
| Aug 7, 2012 | 1.00 inquarter | 0.69 S Holly | Prowers | 17:45 local · NCEI |
| Jun 11, 2011 | 1.00 inquarter | 0.69 N Holly | Prowers | 15:11 local · NCEI |
| Jul 20, 2010 | 1.75 ingolf ball | 3.54 WNW Holly | Prowers | 17:31 local · NCEI |
| Jul 31, 2009 | 1.00 inquarter | 0.69 N Holly | Prowers | 18:08 local · NCEI |
| Jul 31, 2009 | 1.00 inquarter | 1.38 S Holly | Prowers | 18:05 local · NCEI |
| Jul 3, 2009 | 0.75 inpenny | 0.69 N Holly | Prowers | 12:30 local · NCEI |
Hail history near Holly
- Hartman 11 km · 10
- Granada 16 km · 14
- Lamar 43 km · 75
- Towner 46 km · 10
- Sheridan Lake 48 km · 27
- Wiley 53 km · 22
- Two Buttes 60 km · 21
Questions about hail in Holly
How often does it hail in Holly, Colorado?
26 hail reports have been logged in and within about 5 km (3 miles) of Holly since 1977. Over the 20 years 2006–2025 that averages 0.7 reports a year. That ranks #95 of 183 Colorado places by number of reports.
When is hail season in Holly?
Most reports come in July, May, June. July alone accounts for 31% of all reports.
What is the largest hail recorded in Holly?
3.50 in (teacup size) on August 16, 1997 near 1 N Holly. 19% of reports here were 2 inches or larger.
When did it last hail in Holly?
The most recent report in this data is from May 21, 2020 (2.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Holly had in the last five years?
None: there has been no hail report in and within about 5 km (3 miles) of Holly since November 3, 2021. The last one was on May 21, 2020.
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.