Hail history for Castlewood, South Dakota
NOAA hail reports in and within about 5 km (3 miles) of Castlewood since 1981, with preliminary reports to November 3, 2026.
Readout · Castlewood
- Last hail
- Jul 27, 2025
- 1.00 in, quarter size
- Hail days, last 5 years
- 3
- since Nov 3, 2021 · 4 reports
- Largest ever
- 1.75 in
- golf ball · Jul 27, 2025
22 reports on 19 days since 1981 · #99 of 305 South Dakota places
Hail map · Castlewood
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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What the record says about Castlewood
The latest hail report in and around Castlewood is from July 27, 2025, 1.00 in (quarter size). Since November 3, 2021 there have been 3 separate hail days; the biggest stones in that time were 1.75 in on July 27, 2025.
Over the 20 years 2006–2025, Castlewood logged 9 reports on 8 hail days, about 0.5 reports a year. That is about the same as the median South Dakota town on this site (0.5 a year) and ranks #99 of 305 South Dakota cities and towns on this site for all-time reports. Castlewood accounts for 11% of the 194 reports filed in Hamlin County.
0% 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 1.75 in (golf ball) on July 27, 2025 near 2.85 NW Castlewood.
Reports were up 25% in 2016–2025 (5) compared with 2006–2015 (4). The busiest year was 2005, with 4 reports on 2 days. Hail here peaks in July (36% of reports); 45% fall between April and June.
Reports a year 2006–2025 average
- Castlewood 0.5
- Hamlin County 5.0
- Median South Dakota town on this site 0.5
Hail days 2006–2025
- Castlewood 8
- Hamlin County 48
- Median South Dakota town on this site 7
Share 2 in or larger of sized reports
- Castlewood 0%
- Hamlin County 3%
- 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 | 1 | 2 | 3 | ||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jul 27, 2025 | 2 | 1.75 in | — |
| Jun 19, 2025 | 1 | 0.75 in | — |
| Jul 31, 2024 | 1 | 0.75 in | — |
Largest hail on record
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| Jul 27, 2025 | 1.75 ingolf ball | 2.85 NW Castlewood | Hamlin | — | 19:00 local · NCEI |
| May 8, 2005 | 1.75 ingolf ball | 9 W Aberdeen | Brown | — | 14:15 local · NCEI |
| Jul 21, 1981 | 1.75 ingolf ball | — | Hamlin | — | 15:20 local · NCEI |
| Jul 27, 2025 | 1.00 inquarter | Castlewood | Hamlin | — | 19:25 local · NCEI |
| Jun 22, 2017 | 1.00 inquarter | 0.69 N Castlewood | Hamlin | —2 injured | 02:20 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 12 55%
- 1–2 in 10 45%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| Jul 27, 2025 | 1.00 inquarter | Castlewood | Hamlin | — | 19:25 local · NCEI |
| Jul 27, 2025 | 1.75 ingolf ball | 2.85 NW Castlewood | Hamlin | — | 19:00 local · NCEI |
| Jun 19, 2025 | 0.75 inpenny | 0.69 N Castlewood | Hamlin | — | 22:44 local · NCEI |
| Jul 31, 2024 | 0.75 inpenny | 0.69 N Castlewood | Hamlin | — | 18:04 local · NCEI |
| Jun 22, 2017 | 1.00 inquarter | 0.69 N Castlewood | Hamlin | —2 injured | 02:20 local · NCEI |
| Aug 6, 2015 | 0.75 inpenny | 2.77 N Castlewood | Hamlin | — | 14:50 local · NCEI |
| Jul 17, 2015 | 1.00 inquarter | 2.02 SE Castlewood | Hamlin | — | 21:10 local · NCEI |
| Jul 7, 2011 | 0.88 innickel | 3.13 NNE Castlewood | Hamlin | — | 18:51 local · NCEI |
| Sep 20, 2007 | 0.88 innickel | 0.85 SE Castlewood | Hamlin | — | 05:50 local · NCEI |
| May 8, 2005 | 0.88 innickel | 1 W Goodwin | Deuel | — | 15:45 local · NCEI |
| May 8, 2005 | 1.75 ingolf ball | 9 W Aberdeen | Brown | — | 14:15 local · NCEI |
| May 7, 2005 | 0.75 inpenny | Castlewood | Hamlin | — | 19:45 local · NCEI |
Hail history near Castlewood
- Hayti 16 km · 19
- Lake Poinsett 18 km · 24
- Estelline 19 km · 11
- Lake Norden 21 km · 20
- Kranzburg 21 km · 12
- Goodwin 22 km · 11
- Watertown 23 km · 78
- Clear Lake 27 km · 15
Questions about hail in Castlewood
How often does it hail in Castlewood, South Dakota?
22 hail reports have been logged in and within about 5 km (3 miles) of Castlewood since 1981. Over the 20 years 2006–2025 that averages 0.5 reports a year. That ranks #99 of 305 South Dakota places by number of reports.
When is hail season in Castlewood?
Most reports come in July, May, June. July alone accounts for 36% of all reports.
What is the largest hail recorded in Castlewood?
1.75 in (golf ball size) on July 27, 2025 near 2.85 NW Castlewood. 0% of reports here were 2 inches or larger.
When did it last hail in Castlewood?
The most recent report in this data is from July 27, 2025 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Castlewood had in the last five years?
3 separate days with hail reports since November 3, 2021, adding up to 4 reports. The most recent was July 27, 2025.
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.