On the map: every storm report logged this day.
On the map
Storm reports for June 21, 1964
On June 21, 1964, 15 hail, 18 damaging-wind and 12 tornado reports were logged across 13 states.
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On June 21, 1964, 15 hail, 18 damaging-wind and 12 tornado reports were logged across 13 states. The largest hail reported was 3.00″ (teacup size) in Minnehaha County, SD.
Storm day runs 7 a.m. to 7 a.m. Eastern (12:00–12:00 UTC), the convention the Storm Prediction Center uses. Radar hail estimates start October 2019.
Storm reports by state
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| KS | 5 | 3 | 6 | 2.75″ |
| NE | 5 | 4 | 0 | 2.75″ |
| SD | 1 | 1 | 3 | 3.00″ |
| CO | 2 | 0 | 0 | 2.75″ |
| IN | 2 | 0 | 0 | 1.00″ |
| WY | 0 | 1 | 1 | – |
| TX | 0 | 2 | 0 | – |
| NC | 0 | 2 | 0 | – |
| MI | 0 | 2 | 0 | – |
| MO | 0 | 2 | 0 | – |
| SC | 0 | 0 | 1 | – |
| ID | 0 | 0 | 1 | – |
| GA | 0 | 1 | 0 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Dell Rapids, SD | 3,825 | 3.00″ |
| Sterling, CO | 13,114 | 2.75″ |
| Erie, CO | 38,594 | 1.75″ |
| El Dorado, KS | 12,694 | 1.75″ |
| South Bend, IN | 103,713 | 1.00″ |
Hail reports (15)
| Time (UTC) | Size | Location |
|---|---|---|
| 07:00 | 3.00″ | Minnehaha County, SD |
| 22:40 | 2.75″ | Cloud County, KS |
| 22:45 | 2.75″ | Washington County, KS |
| 01:00 | 2.75″ | Logan County, CO |
| 06:00 | 2.75″ | Chase County, NE |
| 06:10 | 2.75″ | Hayes County, NE |
| 22:50 | 1.75″ | Washington County, KS |
| 00:55 | 1.75″ | Boulder County, CO |
| 01:00 | 1.75″ | Butler County, KS |
| 06:00 | 1.75″ | Chase County, NE |
| 14:10 | 1.00″ | St. Joseph County, IN |
| 22:50 | 1.00″ | Washington County, KS |
| 00:30 | 1.00″ | Saline County, NE |
| 02:10 | 1.00″ | St. Joseph County, IN |
| 07:36 | 0.75″ | Lincoln County, NE |
Damage, injuries and deaths
National Weather Service offices recorded about $101,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (45 events in 13 states). Before 1996 the database holds only tornado, hail and wind events, and damage was often entered as a range, so treat these figures as rough. Injuries and deaths are those the events caused directly.
| County | Events | Injuries | Deaths | Property damage |
|---|---|---|---|---|
| Dickinson County, KS | 1 | 0 | 0 | $25,000 |
| Greenville County, SC | 1 | 0 | 0 | $25,000 |
| Lincoln County, SD | 1 | 0 | 0 | $25,000 |
| Platte County, WY | 1 | 0 | 0 | $25,000 |
| Butler County, KS | 2 | 0 | 0 | $1,000 |
Source: NOAA National Centers for Environmental Information (NCEI), Storm Events Database, as entered by National Weather Service offices; data through July 31, 2026. Damage is in dollars of the year, not adjusted for inflation.
Guides: What radar-estimated hail (MESH) is and isn't · Storm reports: preliminary vs final
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