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Bon Homme County, SD hail & severe wind history
136 storm reports on file for Bon Homme County between 2010-07-23 and 2026-06-28 — 81 hail and 55 severe thunderstorm wind. That averages 8 reports a year, and Jul is the busiest month.
At a glance
- Most recent hail report: May 24, 2026 — 1.25" (half dollar), 0.5 mi E of Scotland.
- Hail was reported on 40 days since 2010 — about 2.5 hail days a year.
- Largest hail on record: 2" (hen egg) on Jul 17, 2020.
- Bon Homme County has more hail reports than 52% of the 66 South Dakota counties we cover.
Search every Bon Homme County report
Check a single date first, or filter the full record below — pick a year, narrow to a month, or drag the hail-size slider to see only the larger stones (1", quarter size, is the National Weather Service severe threshold).
Loading Bon Homme County storm reports…
Worst storm days in Bon Homme County
| Date | Reports that day | Largest hail | Peak gust |
|---|---|---|---|
| 2011-08-18 | 7 | 1.75" (golf ball) | — |
| 2026-05-17 | 7 | 1" (quarter) | 90 mph |
| 2011-08-28 | 6 | 1.25" (half dollar) | — |
| 2022-05-30 | 6 | 0.88" (nickel) | 70 mph |
| 2014-07-26 | 5 | 1.75" (golf ball) | — |
| 2023-06-24 | 5 | 1.25" (half dollar) | 64 mph |
| 2020-07-17 | 4 | 2" (hen egg) | 60 mph |
| 2023-07-24 | 4 | 1.75" (golf ball) | — |
| 2015-09-09 | 4 | 1.75" (golf ball) | — |
| 2022-05-12 | 4 | — | 96 mph |
Reports by year
Report counts are driven partly by how many people were around to report a storm, so recent years tend to look busier than the early 2010s. Treat the trend as a reporting trend, not purely a weather trend.
Notable large-hail events (2" and up)
| Date | Size | Near | What was reported |
|---|---|---|---|
| 2020-07-17 | 2" hen egg | .51 mi W of Springfield | Pictures submitted showed hail slightly larger than 2 inches in diameter. |
When does hail hit Bon Homme County?
Across 16 years of records, July produced the most reports (43), followed by the months either side of it. Monthly totals:
| Month | Reports | Share |
|---|---|---|
| January | 0 | 0.0% |
| February | 0 | 0.0% |
| March | 1 | 0.7% |
| April | 2 | 1.5% |
| May | 30 | 22.1% |
| June | 22 | 16.2% |
| July | 43 | 31.6% |
| August | 29 | 21.3% |
| September | 9 | 6.6% |
| October | 0 | 0.0% |
| November | 0 | 0.0% |
| December | 0 | 0.0% |
Neighboring counties
Counties that share a border with Bon Homme County (U.S. Census county adjacency), where we have storm records:
| County | Storm reports | Largest hail |
|---|---|---|
| Charles Mix County, SD | 221 | 3" |
| Hutchinson County, SD | 168 | 3" |
| Yankton County, SD | 144 | 2.75" |
| Knox County, NE | 140 | 4.25" |
See all 66 South Dakota counties →
Common questions about hail in Bon Homme County
- How often does it hail in Bon Homme County?
- Hail was reported on 40 separate days between 2010 and 2026, about 2.5 days a year, with July the busiest month for storm reports. 63 reports were quarter size (1") or larger.
- Does a report here mean hail hit my street?
- Not necessarily. Each report is one observation tied to a nearby landmark, and a county can be large. Storms also go unreported where few people live. Use the date check above to see what was reported nearby, and treat it as a starting point.
- How big is a 1.75" hailstone?
- Forecasters describe hail by everyday objects: 1" is a quarter, 1.75" a golf ball, 2.75" a baseball. The sizes in these reports are estimates made by the person reporting, not lab measurements.
- Where do I get the official record?
- All reports here come from the NOAA NCEI Storm Events Database, which you can search directly. For anything formal, use NOAA’s own records rather than this page.
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About these numbers
Every row above is a report filed with the National Weather Service and archived in the NOAA NCEI Storm Events Database (FIPS 46009). Reports are eyewitness, trained-spotter and damage-survey observations, so they cluster near roads and towns and miss storms over empty country. Hail sizes are estimates. Damage figures are preliminary as filed and are never revised in this archive. Use this page for background, not for an insurance claim, a legal filing, or a roof assessment — for those, get the official record from NOAA directly.