Hail history for Yankton County, South Dakota
Every NOAA hail report filed in Yankton County since 1956, with preliminary National Weather Service reports to November 3, 2026.
Readout · Yankton County
- Last hail
- Aug 20, 2026
- 1.00 in, quarter size · preliminary
- Hail days, last 5 years
- 21
- since Nov 3, 2021 · 33 reports
- Largest ever
- 2.75 in
- baseball · Jun 29, 2017
258 reports on 127 days since 1956 · #21 of 67 South Dakota counties
Hail map · Yankton County
- 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 Yankton County is from August 20, 2026. A local roofer can check and document it at no cost.
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What the record says about Yankton County
The latest hail report in Yankton County is from August 20, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 21 separate hail days; the biggest stones in that time were 1.75 in on July 7, 2025.
Over the 20 years 2006–2025, Yankton County logged 117 reports on 57 hail days, about 5.8 reports a year. That is about the same as the median South Dakota county (5.5 a year) and ranks #21 of 67 South Dakota counties for all-time reports. Yankton County holds 1% of all 17,223 hail reports in South Dakota.
5% 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 June 29, 2017 near 3.54 W Yankton.
Reports were down 38% in 2016–2025 (45) compared with 2006–2015 (72). The busiest year was 2004, with 32 reports on 8 days. Hail here peaks in June (26% of reports); 51% fall between April and June.
Reports a year 2006–2025 average
- Yankton County 5.8
- Median South Dakota county 5.5
Hail days 2006–2025
- Yankton County 57
- Median South Dakota county 54
Share 2 in or larger of sized reports
- Yankton County 5%
- 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 | 2 | 6 | |||||||||
| 2025 | 1 | 7 | 1 | 9 | |||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 2 | 7 | 1 | 10 | |||||||||
| 2022 | 3 | 2 | 2 | 1 | 8 | ||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 1 | 1 | 2 | ||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 1 | 9 | 1 | 11 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Aug 20, 2026 | 1 | 1.00 in | View |
| Aug 10, 2026 | 1 | 1.00 in | View |
| Jun 29, 2026 | 2 | 1.00 in | — |
| May 24, 2026 | 2 | 1.50 in | — |
| Jul 7, 2025 | 1 | 1.75 in | — |
| Jun 29, 2025 | 1 | 1.00 in | — |
| Jun 27, 2025 | 2 | 1.00 in | — |
| Jun 16, 2025 | 4 | 1.00 in | — |
| Apr 17, 2025 | 1 | 1.00 in | — |
| Aug 10, 2023 | 1 | 1.75 in | — |
| Jul 21, 2023 | 4 | 1.00 in | — |
| Jul 12, 2023 | 1 | 1.50 in | — |
| Jul 10, 2023 | 1 | 1.00 in | — |
| Jul 3, 2023 | 1 | 1.00 in | — |
| Jun 24, 2023 | 2 | 1.00 in | — |
| Aug 1, 2022 | 1 | 1.00 in | — |
| Jun 25, 2022 | 1 | 1.00 in | — |
| Jun 15, 2022 | 1 | 1.00 in | — |
| May 30, 2022 | 1 | 1.00 in | — |
| May 11, 2022 | 1 | 0.75 in | — |
| Apr 28, 2022 | 3 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jun 29, 2017 | 2.75 inbaseball | 3.54 W Yankton | — | 16:37 local · NCEI |
| Jun 16, 2006 | 2.75 inbaseball | Lesterville | $10K | 14:22 local · NCEI |
| Sep 2, 1995 | 2.75 inbaseball | Gayville | — | 08:50 local · NCEI |
| May 29, 1980 | 2.75 inbaseball | — | — | 14:41 local · NCEI |
| Jul 9, 2009 | 2.50 intennis ball | 0.69 S Gayville | — | 06:23 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 108 42%
- 1–2 in 138 53%
- 2 in + 12 5%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Aug 20, 2026 | 1.00 inquarter | 5 NE Lesterville | 00:49 UTC · NWS prelim. |
| Aug 10, 2026 | 1.00 inquarter | 6 NNW Irene | 06:50 UTC · NWS prelim. |
| Jun 29, 2026 | 1.00 inquarter | 1.47 SSW Mission Hill | 19:04 local · NCEI |
| Jun 29, 2026 | 1.00 inquarter | 2.57 SW Napa | 18:52 local · NCEI |
| May 24, 2026 | 1.50 inping pong ball | 4.54 WSW Mayfield | 19:10 local · NCEI |
| May 24, 2026 | 1.00 inquarter | 3.6 NNW Utica | 18:47 local · NCEI |
| Jul 7, 2025 | 1.75 ingolf ball | 3.33 WSW Jamesville | 16:50 local · NCEI |
| Jun 29, 2025 | 1.00 inquarter | 2.45 NE Lesterville | 00:25 local · NCEI |
| Jun 27, 2025 | 1.00 inquarter | 4.49 SW Utica | 23:41 local · NCEI |
| Jun 27, 2025 | 0.75 inpenny | 1.47 NNW Yankton | 22:43 local · NCEI |
| Jun 16, 2025 | 1.00 inquarter | 1.23 NE Yankton | 14:30 local · NCEI |
| Jun 16, 2025 | 0.75 inpenny | 0.51 W Yankton | 14:29 local · NCEI |
Cities and towns in Yankton County
| Place | Reports | Largest |
|---|---|---|
| Yankton | 63 | 2.75 in |
| Lesterville | 29 | 2.75 in |
| Utica | 21 | 1.75 in |
| Gayville | 19 | 2.50 in |
| Mission Hill | 14 | 1.75 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 |
|---|---|---|---|
| Volin | 7 | 6 | Jul 21, 2023 |
| Jamesville Colony | 6 | 5 | Aug 20, 2026 |
Questions about hail in Yankton County
How often does it hail in Yankton County, South Dakota?
258 hail reports have been logged in Yankton County since 1956. Over the 20 years 2006–2025 that averages 5.8 reports a year. That ranks #21 of 67 South Dakota counties by number of reports.
When is hail season in Yankton County?
Most reports come in June, May, July. June alone accounts for 26% of all reports.
What is the largest hail recorded in Yankton County?
2.75 in (baseball size) on June 29, 2017 near 3.54 W Yankton. 5% of reports here were 2 inches or larger.
When did it last hail in Yankton County?
The most recent report in this data is from August 20, 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 Yankton County had in the last five years?
21 separate days with hail reports since November 3, 2021, adding up to 33 reports. The most recent was August 20, 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.