On the map: every storm report logged this day.
On the map
Storm reports for June 20, 1964
On June 20, 1964, 11 hail, 23 damaging-wind and 5 tornado reports were logged across 14 states.
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On June 20, 1964, 11 hail, 23 damaging-wind and 5 tornado reports were logged across 14 states. The largest hail reported was 5.00″ (softball size) in Nodaway County, MO.
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 |
|---|---|---|---|---|
| OK | 2 | 3 | 1 | 1.50″ |
| TX | 0 | 4 | 1 | – |
| IL | 0 | 5 | 0 | – |
| NE | 2 | 0 | 2 | 4.00″ |
| WI | 3 | 0 | 1 | 1.50″ |
| MO | 2 | 1 | 0 | 5.00″ |
| FL | 0 | 3 | 0 | – |
| MA | 0 | 2 | 0 | – |
| GA | 0 | 2 | 0 | – |
| KS | 1 | 0 | 0 | 2.00″ |
| CO | 1 | 0 | 0 | 1.00″ |
| IN | 0 | 1 | 0 | – |
| OH | 0 | 1 | 0 | – |
| MD | 0 | 1 | 0 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Maryville, MO | 10,193 | 5.00″ |
| Concordia, KS | 4,926 | 2.00″ |
| Sun Prairie, WI | 39,253 | 1.50″ |
| Aurora, CO | 403,130 | 1.00″ |
Hail reports (11)
| Time (UTC) | Size | Location |
|---|---|---|
| 01:00 | 5.00″ | Nodaway County, MO |
| 08:00 | 4.00″ | Chase County, NE |
| 01:00 | 3.00″ | Nodaway County, MO |
| 08:27 | 2.00″ | Cloud County, KS |
| 01:00 | 1.50″ | Jackson County, OK |
| 02:00 | 1.50″ | Dunn County, WI |
| 03:30 | 1.50″ | Dane County, WI |
| 00:00 | 1.00″ | Richardson County, NE |
| 01:00 | 1.00″ | Greer County, OK |
| 03:50 | 1.00″ | Jackson County, WI |
| 05:05 | 1.00″ | Arapahoe County, CO |
Damage, injuries and deaths
National Weather Service offices recorded about $28,000 in property damage and 1 injury from hail, thunderstorm wind and tornadoes across the US on this storm day (39 events in 14 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 |
|---|---|---|---|---|
| Greer County, OK | 1 | 1 | 0 | $0 |
| Red Willow County, NE | 1 | 0 | 0 | $25,000 |
| Howard County, TX | 1 | 0 | 0 | $3,000 |
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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