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Oglala Lakota County, SD hail & severe wind history
399 storm reports on file for Oglala Lakota County between 2010-05-24 and 2026-06-29 — 190 hail and 209 severe thunderstorm wind. That averages 23.5 reports a year, and Jun is the busiest month.
At a glance
- Most recent hail report: Jun 29, 2026 — 1.5" (ping pong ball), 8.2 mi SW of Batesland.
- Hail was reported on 101 days since 2010 — about 5.9 hail days a year.
- Largest hail on record: 4.25" (grapefruit) on Aug 17, 2014.
- Oglala Lakota County has more hail reports than 91% of the 66 South Dakota counties we cover.
Search every Oglala Lakota 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 Oglala Lakota County storm reports…
Worst storm days in Oglala Lakota County
| Date | Reports that day | Largest hail | Peak gust |
|---|---|---|---|
| 2018-07-27 | 10 | 3.25" (teacup) | 70 mph |
| 2019-07-03 | 10 | 1.75" (golf ball) | 78 mph |
| 2023-07-13 | 8 | 1" (quarter) | 87 mph |
| 2017-08-14 | 6 | 2.75" (baseball) | 61 mph |
| 2022-04-22 | 6 | 2.5" (tennis ball) | 62 mph |
| 2014-08-26 | 6 | 1.75" (golf ball) | 81 mph |
| 2015-06-17 | 6 | 1.5" (ping pong ball) | 61 mph |
| 2017-06-12 | 6 | 1" (quarter) | 70 mph |
| 2012-06-25 | 6 | — | 67 mph |
| 2020-07-10 | 5 | 2.75" (baseball) | 70 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 |
|---|---|---|---|
| 2026-06-29 | 2.5" tennis ball | 2.88 mi WSW of Batesland | Updated report. Hail fell in the Wakpamani area. Numerous vehicles significantly dented. Vehicle side windows smashed out and windshields cracked. Hail damage to trees and vegetation. Time estimated based on radar. |
| 2026-06-29 | 2" hen egg | 0 mi N of Batesland | Time estimated based on radar analysis. |
| 2025-04-27 | 2" hen egg | .85 mi NE of Manderson | No narrative filed |
| 2024-06-01 | 2" hen egg | 3 mi WNW of Batesland | No narrative filed |
| 2024-06-01 | 2.5" tennis ball | 3 mi WSW of Batesland | No narrative filed |
| 2024-06-01 | 2" hen egg | 7.15 mi NW of Oglala | No narrative filed |
| 2023-08-12 | 2" hen egg | 7.15 mi W of Rockyford | No narrative filed |
| 2023-08-12 | 2" hen egg | 4 mi WNW of Rockyford | No narrative filed |
When does hail hit Oglala Lakota County?
Across 17 years of records, June produced the most reports (123), followed by the months either side of it. Monthly totals:
| Month | Reports | Share |
|---|---|---|
| January | 0 | 0.0% |
| February | 0 | 0.0% |
| March | 1 | 0.3% |
| April | 14 | 3.5% |
| May | 36 | 9.0% |
| June | 123 | 30.8% |
| July | 122 | 30.6% |
| August | 91 | 22.8% |
| September | 9 | 2.3% |
| October | 3 | 0.8% |
| November | 0 | 0.0% |
| December | 0 | 0.0% |
Neighboring counties
Counties that share a border with Oglala Lakota County (U.S. Census county adjacency), where we have storm records:
| County | Storm reports | Largest hail |
|---|---|---|
| Pennington County, SD | 1,392 | 4.5" |
| Cherry County, NE | 689 | 5" |
| Custer County, SD | 565 | 4.25" |
| Jackson County, SD | 429 | 4.5" |
| Sheridan County, NE | 398 | 4" |
| Fall River County, SD | 384 | 4.25" |
| Dawes County, NE | 228 | 3" |
| Bennett County, SD | 194 | 4.25" |
See all 66 South Dakota counties →
Common questions about hail in Oglala Lakota County
- How often does it hail in Oglala Lakota County?
- Hail was reported on 101 separate days between 2010 and 2026, about 5.9 days a year, with June the busiest month for storm reports. 162 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.
Look up another place
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 46102). 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.