Hail history for Green Valley, South Dakota
NOAA hail reports in and within about 5 km (3 miles) of Green Valley since 1955, with preliminary reports to November 3, 2026.
Readout · Green Valley
- Last hail
- Jun 1, 2024
- 1.00 in, quarter size
- Hail days, last 5 years
- 2
- since Nov 3, 2021 · 2 reports
- Largest ever
- 3.00 in
- teacup · May 30, 1963
30 reports on 25 days since 1955 · #50 of 305 South Dakota places
Hail map · Green Valley
- 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 Green Valley is from June 1, 2024. A local roofer can check and document it at no cost.
Phone line opening soon
What the record says about Green Valley
The latest hail report in and around Green Valley is from June 1, 2024, 1.00 in (quarter size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.00 in on June 1, 2024.
Over the 20 years 2006–2025, Green Valley logged 4 reports on 4 hail days, about 0.2 reports a year. That is about half the median South Dakota town on this site (0.5 a year) and ranks #50 of 305 South Dakota cities and towns on this site for all-time reports. Green Valley accounts for 2% of the 1,654 reports filed in Pennington County.
27% 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 3.00 in (teacup) on May 30, 1963.
The busiest year was 1958, with 8 reports on 3 days. Hail here peaks in June (37% of reports); 47% fall between April and June.
Reports a year 2006–2025 average
- Green Valley 0.2
- Pennington County 55.0
- Median South Dakota town on this site 0.5
Hail days 2006–2025
- Green Valley 4
- Pennington County 308
- Median South Dakota town on this site 7
Share 2 in or larger of sized reports
- Green Valley 27%
- Pennington County 11%
- 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 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 1 | 1 | |||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jun 1, 2024 | 1 | 1.00 in | — |
| May 29, 2023 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| May 30, 1963 | 3.00 inteacup | — | Pennington | 16:45 local · NCEI |
| Jul 24, 1972 | 2.75 inbaseball | — | Pennington | 18:00 local · NCEI |
| Jul 19, 1958 | 2.50 intennis ball | — | Pennington | 15:00 local · NCEI |
| Jul 19, 1958 | 2.50 intennis ball | — | Pennington | 15:00 local · NCEI |
| Jul 25, 1955 | 2.50 intennis ball | — | Pennington | 17:15 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 11 37%
- 1–2 in 11 37%
- 2 in + 8 27%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jun 1, 2024 | 1.00 inquarter | 2.42 SW (Rap)rapid City Arpt | Pennington | 13:30 local · NCEI |
| May 29, 2023 | 1.00 inquarter | 4 SSW (Rap)rapid City Arpt | Pennington | 13:24 local · NCEI |
| Aug 30, 2013 | 0.88 innickel | 2.1 WSW (Rap)rapid City Arpt | Pennington | 13:45 local · NCEI |
| Apr 21, 2011 | 0.75 inpenny | 6 ESE Rapid City | Pennington | 18:40 local · NCEI |
| Jun 16, 1982 | 0.75 inpenny | — | Pennington | 16:55 local · NCEI |
| Aug 4, 1975 | 1.50 inping pong ball | — | Pennington | 17:27 local · NCEI |
| Aug 14, 1974 | 0.75 inpenny | — | Pennington | 18:37 local · NCEI |
| Jul 4, 1973 | 1.50 inping pong ball | — | Pennington | 15:45 local · NCEI |
| Jul 24, 1972 | 2.75 inbaseball | — | Pennington | 18:00 local · NCEI |
| Jul 14, 1969 | 0.75 inpenny | — | Pennington | 13:54 local · NCEI |
| Jul 10, 1969 | 1.75 ingolf ball | — | Pennington | 12:49 local · NCEI |
| Jul 5, 1966 | 1.00 inquarter | — | Pennington | 06:13 local · NCEI |
Hail history near Green Valley
- Rapid Valley 3 km · 18
- Box Elder 8 km · 95
- Rapid City 9 km · 448
- Colonial Pine Hills 17 km · 162
- Blackhawk 22 km · 50
- Hermosa 23 km · 71
- New Underwood 23 km · 12
- Summerset 25 km · 49
Questions about hail in Green Valley
How often does it hail in Green Valley, South Dakota?
30 hail reports have been logged in and within about 5 km (3 miles) of Green Valley since 1955. Over the 20 years 2006–2025 that averages 0.2 reports a year. That ranks #50 of 305 South Dakota places by number of reports.
When is hail season in Green Valley?
Most reports come in June, July, August. June alone accounts for 37% of all reports.
What is the largest hail recorded in Green Valley?
3.00 in (teacup size) on May 30, 1963. 27% of reports here were 2 inches or larger.
When did it last hail in Green Valley?
The most recent report in this data is from June 1, 2024 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Green Valley had in the last five years?
2 separate days with hail reports since November 3, 2021, adding up to 2 reports. The most recent was June 1, 2024.
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.