Hail history for Bon Homme County, South Dakota
Every NOAA hail report filed in Bon Homme County since 1960, with preliminary National Weather Service reports to November 3, 2026.
Readout · Bon Homme County
- Last hail
- Sep 7, 2026
- 1.00 in, quarter size · preliminary
- Hail days, last 5 years
- 18
- since Nov 3, 2021 · 31 reports
- Largest ever
- 5.00 in
- softball · Jul 17, 1965
232 reports on 120 days since 1960 · #26 of 67 South Dakota counties
Hail map · Bon Homme County
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
Concerned about your roof after hail?
Send a request to Moxisync Labs for review. The latest hail report in Bon Homme County is from September 7, 2026. We’re building local roofer coverage. Submitting a request does not guarantee a quote or book an inspection.
Phone line opening soon
What the record says about Bon Homme County
The latest hail report in Bon Homme County is from September 7, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 18 separate hail days; the biggest stones in that time were 2.00 in on September 1, 2026.
Over the 20 years 2006–2025, Bon Homme County logged 119 reports on 60 hail days, about 6.0 reports a year. That is about the same as the median South Dakota county (5.5 a year) and ranks #26 of 67 South Dakota counties for all-time reports. Bon Homme County holds 1% of all 17,223 hail reports in South Dakota.
7% 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 5.00 in (softball) on July 17, 1965.
Reports were down 41% in 2016–2025 (44) compared with 2006–2015 (75). The busiest year was 2002, with 25 reports on 8 days. Hail here peaks in July (24% of reports); 42% fall between April and June.
Reports a year 2006–2025 average
- Bon Homme County 6.0
- Median South Dakota county 5.5
Hail days 2006–2025
- Bon Homme County 60
- Median South Dakota county 54
Share 2 in or larger of sized reports
- Bon Homme County 7%
- Median South Dakota county 8%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 3 | 3 | 6 | ||||||||||
| 2025 | 1 | 1 | 2 | 4 | |||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 1 | 1 | 4 | 8 | 14 | ||||||||
| 2022 | 3 | 3 | 1 | 7 | |||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 5 | 3 | 8 | ||||||||||
| 2019 | 2 | 1 | 3 | ||||||||||
| 2018 | 1 | 1 | 2 | ||||||||||
| 2017 | 2 | 1 | 3 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Sep 7, 2026 | 1 | 1.00 in | View |
| Sep 1, 2026 | 2 | 2.00 in | View |
| May 24, 2026 | 2 | 1.50 in | — |
| May 17, 2026 | 1 | 1.00 in | — |
| Jul 9, 2025 | 2 | 1.00 in | — |
| Jun 16, 2025 | 1 | 1.75 in | — |
| Apr 28, 2025 | 1 | 1.25 in | — |
| Jul 30, 2023 | 1 | 1.75 in | — |
| Jul 24, 2023 | 4 | 1.75 in | — |
| Jul 10, 2023 | 3 | 1.75 in | — |
| Jun 24, 2023 | 3 | 1.25 in | — |
| Jun 16, 2023 | 1 | 0.88 in | — |
| May 11, 2023 | 1 | 1.75 in | — |
| Mar 30, 2023 | 1 | 1.50 in | — |
| Aug 1, 2022 | 1 | 1.00 in | — |
| Jul 2, 2022 | 3 | 1.25 in | — |
| May 30, 2022 | 2 | 0.88 in | — |
| May 29, 2022 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jul 17, 1965 | 5.00 insoftball | — | — | 23:50 local · NCEI |
| Aug 8, 2009 | 4.00 ingrapefruit | 0.86 NE Avon | — | 13:17 local · NCEI |
| Jun 21, 1969 | 3.25 inteacup | — | — | 18:15 local · NCEI |
| Jul 29, 1968 | 3.00 inteacup | — | — | 14:10 local · NCEI |
| Aug 8, 2009 | 2.75 inbaseball | 0.86 NW Tyndall | $100K | 13:30 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 98 42%
- 1–2 in 117 51%
- 2 in + 16 7%
- No size 1
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Sep 7, 2026 | 1.00 inquarter | Tabor | 04:00 UTC · NWS prelim. |
| Sep 1, 2026 | 1.00 inquarter | 7 SW Springfield | 00:47 UTC · NWS prelim. |
| Sep 1, 2026 | 2.00 inhen egg | 8 WSW Springfield | 00:42 UTC · NWS prelim. |
| May 24, 2026 | 1.50 inping pong ball | 4.86 S Scotland | 17:51 local · NCEI |
| May 24, 2026 | 1.25 inhalf dollar | 0.5 E Scotland | 17:48 local · NCEI |
| May 17, 2026 | 1.00 inquarter | 1.47 SSW Tyndall | 14:08 local · NCEI |
| Jul 9, 2025 | 1.00 inquarter | 1.22 NW Tyndall | 21:52 local · NCEI |
| Jul 9, 2025 | 0.88 innickel | 1.22 NW Tyndall | 21:48 local · NCEI |
| Jun 16, 2025 | 1.75 ingolf ball | 5.62 N Tyndall | 13:45 local · NCEI |
| Apr 28, 2025 | 1.25 inhalf dollar | 5.31 SW Scotland | 17:14 local · NCEI |
| Jul 30, 2023 | 1.75 ingolf ball | 2.81 N Tyndall | 14:13 local · NCEI |
| Jul 24, 2023 | 1.00 inquarter | 2.88 ENE Bon Homme Colony | 02:07 local · NCEI |
Cities and towns in Bon Homme County
| Place | Reports | Largest |
|---|---|---|
| Tyndall | 42 | 3.25 in |
| Avon | 29 | 4.00 in |
| Springfield | 28 | 2.75 in |
| Tabor | 24 | 1.75 in |
| Scotland | 19 | 2.00 in |
Smaller places with fewer than 10 reports
These places have too few reports for a page of their own, so their record lives here.
| Place | Reports | Hail days | Latest |
|---|---|---|---|
| Bon Homme Colony | 7 | 6 | Jul 24, 2023 |
| Running Water | 7 | 7 | Sep 1, 2026 |
Questions about hail in Bon Homme County
How often does it hail in Bon Homme County, South Dakota?
232 hail reports have been logged in Bon Homme County since 1960. Over the 20 years 2006–2025 that averages 6.0 reports a year. That ranks #26 of 67 South Dakota counties by number of reports.
When is hail season in Bon Homme County?
Most reports come in July, August, June. July alone accounts for 24% of all reports.
What is the largest hail recorded in Bon Homme County?
5.00 in (softball size) on July 17, 1965. 7% of reports here were 2 inches or larger.
When did it last hail in Bon Homme County?
The most recent report in this data is from September 7, 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 Bon Homme County had in the last five years?
18 separate days with hail reports since November 3, 2021, adding up to 31 reports. The most recent was September 7, 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.