Hail history for Interior, South Dakota
NOAA hail reports in and within about 5 km (3 miles) of Interior since 1984, with preliminary reports to November 3, 2026.
Readout · Interior
- Last hail
- Aug 11, 2026
- 1.25 in, half dollar size · preliminary
- Hail days, last 5 years
- 2
- since Nov 3, 2021 · 2 reports
- Largest ever
- 2.50 in
- tennis ball · Jun 13, 1996
34 reports on 30 days since 1984 · #42 of 305 South Dakota places
Hail map · Interior
- 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 Interior is from August 11, 2026. A local roofer can check and document it at no cost.
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What the record says about Interior
The latest hail report in and around Interior is from August 11, 2026, 1.25 in (half dollar size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 2.00 in on June 28, 2026.
Over the 20 years 2006–2025, Interior logged 15 reports on 13 hail days, about 0.8 reports a year. That is 67% more than the median South Dakota town on this site (0.5 a year) and ranks #42 of 305 South Dakota cities and towns on this site for all-time reports. Interior accounts for 11% of the 297 reports filed in Jackson County.
6% 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 2.50 in (tennis ball) on June 13, 1996 near Interior.
Reports were down 93% in 2016–2025 (1) compared with 2006–2015 (14). The busiest year was 2012, with 3 reports on 2 days. Hail here peaks in June (32% of reports); 53% fall between April and June.
Reports a year 2006–2025 average
- Interior 0.8
- Jackson County 9.1
- Median South Dakota town on this site 0.5
Hail days 2006–2025
- Interior 13
- Jackson County 95
- Median South Dakota town on this site 7
Share 2 in or larger of sized reports
- Interior 6%
- Jackson 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 | 1 | 1 | 2 | ||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 1 | 1 | |||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Aug 11, 2026 | 1 | 1.25 in | View |
| Jun 28, 2026 | 1 | 2.00 in | — |
Largest hail on record
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| Jun 13, 1996 | 2.50 intennis ball | Interior | Jackson | $2K | 16:40 local · NCEI |
| Jun 28, 2026 | 2.00 inhen egg | 0.69 N Interior | Jackson | — | 21:35 local · NCEI |
| Jun 7, 2012 | 1.75 ingolf ball | 2 S Interior | Jackson | $5K | 15:54 local · NCEI |
| May 5, 2012 | 1.75 ingolf ball | 3 SW Interior | Jackson | — | 03:00 local · NCEI |
| Jul 4, 2003 | 1.75 ingolf ball | Rosebud | Todd | — | 17:26 local · NCEI |
Size of every report
- Under 1 in 9 26%
- 1–2 in 23 68%
- 2 in + 2 6%
Most recent reports
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| Aug 11, 2026 | 1.25 inhalf dollar | 1 NE Cedar Pass | Jackson | — | 03:32 UTC · NWS prelim. |
| Jun 28, 2026 | 2.00 inhen egg | 0.69 N Interior | Jackson | — | 21:35 local · NCEI |
| May 23, 2020 | 0.88 innickel | Interior | Jackson | — | 13:28 local · NCEI |
| Sep 1, 2014 | 1.00 inquarter | Interior | Jackson | — | 14:50 local · NCEI |
| Jun 21, 2013 | 1.00 inquarter | Interior | Jackson | — | 07:45 local · NCEI |
| May 27, 2013 | 0.88 innickel | Interior | Jackson | — | 18:15 local · NCEI |
| Jun 7, 2012 | 1.75 ingolf ball | 2 S Interior | Jackson | $5K | 15:54 local · NCEI |
| May 5, 2012 | 1.50 inping pong ball | Interior | Jackson | — | 03:03 local · NCEI |
| May 5, 2012 | 1.75 ingolf ball | 3 SW Interior | Jackson | — | 03:00 local · NCEI |
| Jun 11, 2011 | 0.88 innickel | 3 NE Interior | Jackson | — | 14:15 local · NCEI |
| Jun 2, 2011 | 1.00 inquarter | 3 SW Interior | Jackson | — | 19:12 local · NCEI |
| May 9, 2011 | 1.00 inquarter | 1.71 SE Interior | Jackson | — | 21:50 local · NCEI |
Hail history near Interior
Questions about hail in Interior
How often does it hail in Interior, South Dakota?
34 hail reports have been logged in and within about 5 km (3 miles) of Interior since 1984. Over the 20 years 2006–2025 that averages 0.8 reports a year. That ranks #42 of 305 South Dakota places by number of reports.
When is hail season in Interior?
Most reports come in June, July, May. June alone accounts for 32% of all reports.
What is the largest hail recorded in Interior?
2.50 in (tennis ball size) on June 13, 1996 near Interior. 6% of reports here were 2 inches or larger.
When did it last hail in Interior?
The most recent report in this data is from August 11, 2026 (1.25 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Interior 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 August 11, 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.