Hail history for Stanley County, South Dakota
Every NOAA hail report filed in Stanley County since 1960, with preliminary National Weather Service reports to November 3, 2026.
Readout · Stanley County
- Last hail
- Jul 25, 2026
- 1.00 in, quarter size
- Hail days, last 5 years
- 13
- since Nov 3, 2021 · 17 reports
- Largest ever
- 2.75 in
- baseball · Jul 18, 2023
187 reports on 125 days since 1960 · #41 of 67 South Dakota counties
Hail map · Stanley County
- 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 Stanley County
The latest hail report in Stanley County is from July 25, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 13 separate hail days; the biggest stones in that time were 2.75 in on July 18, 2023.
Over the 20 years 2006–2025, Stanley County logged 105 reports on 65 hail days, about 5.3 reports a year. That is about the same as the median South Dakota county (5.5 a year) and ranks #41 of 67 South Dakota counties for all-time reports. Stanley County holds 1% of all 17,223 hail reports in South Dakota.
13% of reports with a size were 2 inches (hen egg) or larger, against 8% for the median South Dakota county. The largest hail on record here is 2.75 in (baseball) on July 18, 2023 near 1.47 NNW Ft Pierre.
Reports were down 36% in 2016–2025 (41) compared with 2006–2015 (64). The busiest year was 2008, with 11 reports on 6 days. Hail here peaks in June (36% of reports); 50% fall between April and June.
Reports a year 2006–2025 average
- Stanley County 5.3
- Median South Dakota county 5.5
Hail days 2006–2025
- Stanley County 65
- Median South Dakota county 54
Share 2 in or larger of sized reports
- Stanley County 13%
- Median South Dakota county 8%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2 | 2 | 4 | ||||||||||
| 2025 | 3 | 3 | |||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 5 | 2 | 7 | ||||||||||
| 2022 | 2 | 2 | |||||||||||
| 2021 | 1 | 1 | 2 | ||||||||||
| 2020 | 2 | 1 | 4 | 7 | |||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 5 | 5 | |||||||||||
| 2017 | 2 | 2 | 4 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jul 25, 2026 | 2 | 2.00 in | — |
| Jun 9, 2026 | 2 | 1.00 in | — |
| Jul 26, 2025 | 1 | 1.25 in | — |
| Jul 20, 2025 | 1 | 2.50 in | — |
| Jul 14, 2025 | 1 | 1.00 in | — |
| Aug 21, 2024 | 1 | 1.50 in | — |
| Sep 20, 2023 | 1 | 1.75 in | — |
| Sep 7, 2023 | 1 | 1.25 in | — |
| Jul 27, 2023 | 1 | 1.75 in | — |
| Jul 26, 2023 | 3 | 2.50 in | — |
| Jul 18, 2023 | 1 | 2.75 in | — |
| Jun 24, 2022 | 1 | 1.00 in | — |
| Jun 13, 2022 | 1 | 1.75 in | — |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Jul 18, 2023 | 2.75 inbaseball | 1.47 NNW Ft Pierre | 16:45 local · NCEI |
| Aug 26, 2020 | 2.75 inbaseball | 5.65 WSW Sansarc | 15:48 local · NCEI |
| Jun 26, 1998 | 2.75 inbaseball | 8 NW Hayes | 18:50 local · NCEI |
| Jun 30, 1997 | 2.75 inbaseball | Ft Pierre | 18:00 local · NCEI |
| Aug 27, 1995 | 2.75 inbaseball | Ft Pierre | 18:39 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 51 27%
- 1–2 in 112 60%
- 2 in + 24 13%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Jul 25, 2026 | 1.00 inquarter | 2.55 NW Ft Pierre | 14:33 local · NCEI |
| Jul 25, 2026 | 2.00 inhen egg | 5.66 WNW Ft Pierre | 14:33 local · NCEI |
| Jun 9, 2026 | 1.00 inquarter | 0.85 NW Ft Pierre | 19:12 local · NCEI |
| Jun 9, 2026 | 0.88 innickel | 3.95 E Hayes Airstrip | 18:35 local · NCEI |
| Jul 26, 2025 | 1.25 inhalf dollar | 9.56 WSW Orton | 16:02 local · NCEI |
| Jul 20, 2025 | 2.50 intennis ball | 4.59 SSW Hayes | 18:01 local · NCEI |
| Jul 14, 2025 | 1.00 inquarter | 3.03 WSW Orton | 17:00 local · NCEI |
| Aug 21, 2024 | 1.50 inping pong ball | 4.18 S Bunker | 18:00 local · NCEI |
| Sep 20, 2023 | 1.75 ingolf ball | 4.84 S Hayes | 18:55 local · NCEI |
| Sep 7, 2023 | 1.25 inhalf dollar | 6.08 SE Hayes Airstrip | 09:32 local · NCEI |
| Jul 27, 2023 | 1.75 ingolf ball | 4.94 NNE Bunker | 18:00 local · NCEI |
| Jul 26, 2023 | 1.25 inhalf dollar | 0.85 NW Ft Pierre | 16:56 local · NCEI |
Cities and towns in Stanley County
| Place | Reports | Largest |
|---|---|---|
| Fort Pierre | 25 | 2.75 in |
Questions about hail in Stanley County
How often does it hail in Stanley County, South Dakota?
187 hail reports have been logged in Stanley County since 1960. Over the 20 years 2006–2025 that averages 5.3 reports a year. That ranks #41 of 67 South Dakota counties by number of reports.
When is hail season in Stanley County?
Most reports come in June, July, August. June alone accounts for 36% of all reports.
What is the largest hail recorded in Stanley County?
2.75 in (baseball size) on July 18, 2023 near 1.47 NNW Ft Pierre. 13% of reports here were 2 inches or larger.
When did it last hail in Stanley County?
The most recent report in this data is from July 25, 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 Stanley County had in the last five years?
13 separate days with hail reports since November 3, 2021, adding up to 17 reports. The most recent was July 25, 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.