October 2021 storm reports: hail, wind and tornadoes
IndependentNot affiliated with NOAA or the National Weather Service.
In October 2021, 117 hail, 457 damaging-wind and 149 tornado reports were logged on 24 storm days across 37 states. The largest hail reported was 3.00″ (teacup size) in Cleveland County, OK on October 10, 2021. The most hail reports came on October 5, 2021 (25). Tornadoes killed 2. Radar estimated hail of 1 inch or larger on 30 days; the widest swath, on October 5, 2021, covered 1,479 square miles.
Source: NOAA Storm Prediction Center storm reports; NOAA MRMS radar hail estimates (MESH) via the Iowa Environmental Mesonet. Data through November 6, 2026. Methodology
← September 2021 All 2021 storm days November 2021 →
Source: National Storms (nationalstorms.com), CC BY 4.0, data from NOAA Storm Prediction Center storm reports.
Biggest storm days of October 2021
| Day | Hail | Wind | Tornado | Largest hail | States | Radar 1″+ area | Radar max |
|---|---|---|---|---|---|---|---|
| Oct 10, 2021 | 17 | 72 | 21 | 3.00″ | 6 | 1,213 mi² | 3.61″ |
| Oct 12, 2021 | 15 | 41 | 24 | 1.75″ | 6 | 1,088 mi² | 2.01″ |
| Oct 24, 2021 | 9 | 36 | 17 | 1.75″ | 6 | 191 mi² | 4.58″ |
| Oct 11, 2021 | 2 | 46 | 8 | 1.00″ | 5 | 20 mi² | 2.43″ |
| Oct 25, 2021 | 0 | 54 | 1 | – | 5 | 53 mi² | 3.35″ |
| Oct 15, 2021 | 4 | 32 | 15 | 1.25″ | 6 | 138 mi² | 2.36″ |
| Oct 16, 2021 | 0 | 38 | 1 | – | 5 | 8 mi² | 2.06″ |
| Oct 5, 2021 | 25 | 11 | 0 | 1.75″ | 5 | 1,479 mi² | 6.00″ |
| Oct 26, 2021 | 9 | 22 | 4 | 1.50″ | 4 | 530 mi² | 5.83″ |
| Oct 27, 2021 | 0 | 20 | 14 | – | 3 | 56 mi² | 4.72″ |
Largest hail reported in October 2021
| Day | Size | Location |
|---|---|---|
| Oct 10, 2021 | 3.00″ (teacup) | Cleveland County, OK |
| Oct 10, 2021 | 2.75″ (baseball) | Cleveland County, OK |
| Oct 10, 2021 | 2.00″ (hen egg) | Kiowa County, OK |
| Oct 10, 2021 | 2.00″ (hen egg) | Osage County, OK |
| Oct 10, 2021 | 2.00″ (hen egg) | Cleveland County, OK |
| Oct 14, 2021 | 2.00″ (hen egg) | Canadian County, OK |
| Oct 5, 2021 | 1.75″ (golf ball) | Carroll County, MS |
| Oct 5, 2021 | 1.75″ (golf ball) | Maricopa County, AZ |
| Oct 9, 2021 | 1.75″ (golf ball) | Jerauld County, SD |
| Oct 9, 2021 | 1.75″ (golf ball) | Jerauld County, SD |
Storm reports by state, October 2021
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| Oklahoma | 26 | 71 | 34 | 3.00″ |
| Texas | 7 | 66 | 4 | 1.75″ |
| Pennsylvania | 0 | 37 | 12 | – |
| Kansas | 12 | 23 | 13 | 1.75″ |
| Illinois | 7 | 28 | 10 | 1.75″ |
| Missouri | 5 | 18 | 17 | 1.50″ |
| Virginia | 0 | 35 | 1 | – |
| Ohio | 4 | 10 | 19 | 1.00″ |
| Indiana | 1 | 26 | 4 | 1.00″ |
| South Dakota | 9 | 10 | 7 | 1.75″ |
| Arizona | 17 | 8 | 0 | 1.75″ |
| New York | 0 | 24 | 0 | – |
| Minnesota | 1 | 7 | 9 | 1.75″ |
| Louisiana | 0 | 7 | 8 | – |
| Mississippi | 8 | 3 | 2 | 1.75″ |
| Arkansas | 7 | 3 | 2 | 1.25″ |
| Michigan | 0 | 10 | 2 | – |
| Maryland | 0 | 10 | 0 | – |
| Florida | 0 | 8 | 1 | – |
| Georgia | 0 | 8 | 0 | – |
| Kentucky | 0 | 8 | 0 | – |
| Tennessee | 2 | 4 | 2 | 1.00″ |
| California | 0 | 6 | 0 | – |
| Alabama | 2 | 3 | 0 | 0.88″ |
| North Carolina | 0 | 5 | 0 | – |
| North Dakota | 0 | 3 | 2 | – |
| Vermont | 0 | 5 | 0 | – |
| Nebraska | 3 | 1 | 0 | 1.50″ |
| New Mexico | 3 | 1 | 0 | 1.50″ |
| Massachusetts | 0 | 3 | 0 | – |
| New Jersey | 0 | 2 | 0 | – |
| Utah | 0 | 2 | 0 | – |
| Colorado | 1 | 0 | 0 | 1.00″ |
| Delaware | 0 | 1 | 0 | – |
| Iowa | 1 | 0 | 0 | 0.88″ |
| Washington | 0 | 1 | 0 | – |
| Wisconsin | 1 | 0 | 0 | 0.75″ |
Every storm day in October 2021
Oct 1 Oct 3 Oct 4 Oct 5 Oct 6 Oct 7 Oct 8 Oct 9 Oct 10 Oct 11 Oct 12 Oct 13 Oct 14 Oct 15 Oct 16 Oct 20 Oct 21 Oct 22 Oct 23 Oct 24 Oct 25 Oct 26 Oct 27 Oct 28
A storm day runs 7 a.m. to 7 a.m. Eastern (12:00–12:00 UTC), the convention the Storm Prediction Center uses. Read more about NOAA storm reports.