Hail history for Hermosa, South Dakota
NOAA hail reports in and within about 5 km (3 miles) of Hermosa since 1977, with preliminary reports to November 3, 2026.
Readout · Hermosa
- Last hail
- Aug 23, 2026
- 1.00 in, quarter size · preliminary
- Hail days, last 5 years
- 11
- since Nov 3, 2021 · 23 reports
- Largest ever
- 3.60 in
- teacup · Aug 11, 2026
71 reports on 49 days since 1977 · #13 of 305 South Dakota places
Hail map · Hermosa
- 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 Hermosa is from August 23, 2026. A local roofer can check and document it at no cost.
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What the record says about Hermosa
The latest hail report in and around Hermosa is from August 23, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 11 separate hail days; the biggest stones in that time were 3.60 in on August 11, 2026.
Over the 20 years 2006–2025, Hermosa logged 44 reports on 28 hail days, about 2.2 reports a year. That is 4.9 times the median South Dakota town on this site (0.5 a year) and ranks #13 of 305 South Dakota cities and towns on this site for all-time reports. Hermosa accounts for 10% of the 711 reports filed in Custer County.
23% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median South Dakota town on this site. The largest hail on record here is 3.60 in (teacup) on August 11, 2026 near 2 SSW Hermosa.
Reports were up 44% in 2016–2025 (26) compared with 2006–2015 (18). The busiest year was 2024, with 9 reports on 4 days. Hail here peaks in July (41% of reports); 24% fall between April and June.
Reports a year 2006–2025 average
- Hermosa 2.2
- Custer County 24.4
- Median South Dakota town on this site 0.5
Hail days 2006–2025
- Hermosa 28
- Custer County 217
- Median South Dakota town on this site 7
Share 2 in or larger of sized reports
- Hermosa 23%
- Custer County 10%
- Median South Dakota town on this site 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 5 | 5 | |||||||||||
| 2025 | 1 | 1 | |||||||||||
| 2024 | 6 | 2 | 1 | 9 | |||||||||
| 2023 | 3 | 3 | 2 | 8 | |||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 1 | 1 | |||||||||||
| 2019 | 2 | 2 | |||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Aug 23, 2026 | 1 | 1.00 in | View |
| Aug 11, 2026 | 4 | 3.60 in | View |
| Jul 6, 2025 | 1 | 1.00 in | — |
| Sep 15, 2024 | 1 | 0.75 in | — |
| Aug 26, 2024 | 1 | 2.00 in | — |
| Aug 11, 2024 | 1 | 1.00 in | — |
| Jul 28, 2024 | 6 | 2.25 in | — |
| Aug 12, 2023 | 2 | 2.00 in | — |
| Jul 3, 2023 | 3 | 1.50 in | — |
| May 30, 2023 | 2 | 1.00 in | — |
| May 29, 2023 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Aug 11, 2026 | 3.60 inteacup | 2 SSW Hermosa | Custer | 21:35 UTC · NWS prelim. |
| Aug 11, 2026 | 3.40 inteacup | 3 SSW Hermosa | Custer | 21:35 UTC · NWS prelim. |
| Aug 17, 2014 | 3.00 inteacup | 0.38 ESE Hermosa | Custer | 14:35 local · NCEI |
| Aug 11, 2026 | 2.75 inbaseball | 1 WNW Hermosa | Custer | 21:28 UTC · NWS prelim. |
| Jun 2, 2019 | 2.50 intennis ball | 1 SSW Hermosa | Custer | 13:00 local · NCEI |
Size of every report
- Under 1 in 5 7%
- 1–2 in 50 70%
- 2 in + 16 23%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Aug 23, 2026 | 1.00 inquarter | Hermosa | Custer | 21:18 UTC · NWS prelim. |
| Aug 11, 2026 | 3.40 inteacup | 3 SSW Hermosa | Custer | 21:35 UTC · NWS prelim. |
| Aug 11, 2026 | 3.60 inteacup | 2 SSW Hermosa | Custer | 21:35 UTC · NWS prelim. |
| Aug 11, 2026 | 2.75 inbaseball | 1 WNW Hermosa | Custer | 21:28 UTC · NWS prelim. |
| Aug 11, 2026 | 1.50 inping pong ball | 3 ESE Hermosa | Custer | 21:27 UTC · NWS prelim. |
| Jul 6, 2025 | 1.00 inquarter | 0.5 W Hermosa | Custer | 17:11 local · NCEI |
| Sep 15, 2024 | 0.75 inpenny | 1 W Hermosa | Custer | 21:05 local · NCEI |
| Aug 26, 2024 | 2.00 inhen egg | Hermosa | Custer | 14:50 local · NCEI |
| Aug 11, 2024 | 1.00 inquarter | Hermosa | Custer | 13:11 local · NCEI |
| Jul 28, 2024 | 2.25 inhen egg | Hermosa | Custer | 18:55 local · NCEI |
| Jul 28, 2024 | 1.75 ingolf ball | 1 NW Hermosa | Custer | 18:54 local · NCEI |
| Jul 28, 2024 | 1.75 ingolf ball | 2 NE Hermosa | Custer | 18:54 local · NCEI |
Hail history near Hermosa
- Fairburn 17 km · 15
- Keystone 20 km · 117
- Colonial Pine Hills 22 km · 162
- Green Valley 23 km · 30
- Rapid City 26 km · 448
- Rapid Valley 26 km · 18
- Box Elder 31 km · 95
- Hill City 32 km · 64
Questions about hail in Hermosa
How often does it hail in Hermosa, South Dakota?
71 hail reports have been logged in and within about 5 km (3 miles) of Hermosa since 1977. Over the 20 years 2006–2025 that averages 2.2 reports a year. That ranks #13 of 305 South Dakota places by number of reports.
When is hail season in Hermosa?
Most reports come in July, August, June. July alone accounts for 41% of all reports.
What is the largest hail recorded in Hermosa?
3.60 in (teacup size) on August 11, 2026 near 2 SSW Hermosa. 23% of reports here were 2 inches or larger.
When did it last hail in Hermosa?
The most recent report in this data is from August 23, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Hermosa had in the last five years?
11 separate days with hail reports since November 3, 2021, adding up to 23 reports. The most recent was August 23, 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.