August 2013 storm reports: hail, wind and tornadoes
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In August 2013, 1,143 hail, 1,348 damaging-wind and 46 tornado reports were logged on 31 storm days across 46 states. The largest hail reported was 4.25″ (grapefruit size) in Powder River County, MT on August 3, 2013. The most hail reports came on August 6, 2013 (156).
Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology
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Source: National Storms (nationalstorms.com), CC BY 4.0, data from NOAA Storm Prediction Center storm reports.
Biggest storm days of August 2013
| Day | Hail | Wind | Tornado | Largest hail | States |
|---|---|---|---|---|---|
| Aug 6, 2013 | 156 | 119 | 11 | 4.25″ | 17 |
| Aug 1, 2013 | 114 | 96 | 3 | 2.75″ | 18 |
| Aug 31, 2013 | 62 | 132 | 1 | 2.50″ | 24 |
| Aug 30, 2013 | 112 | 75 | 2 | 4.25″ | 17 |
| Aug 5, 2013 | 67 | 102 | 2 | 2.75″ | 14 |
| Aug 7, 2013 | 56 | 61 | 4 | 2.75″ | 18 |
| Aug 10, 2013 | 56 | 63 | 0 | 2.00″ | 16 |
| Aug 21, 2013 | 53 | 59 | 1 | 2.75″ | 16 |
| Aug 15, 2013 | 57 | 40 | 0 | 2.25″ | 7 |
| Aug 3, 2013 | 56 | 21 | 8 | 4.25″ | 7 |
Largest hail reported in August 2013
| Day | Size | Location |
|---|---|---|
| Aug 3, 2013 | 4.25″ (grapefruit) | Powder River County, MT |
| Aug 6, 2013 | 4.25″ (grapefruit) | Greeley County, KS |
| Aug 30, 2013 | 4.25″ (grapefruit) | Pennington County, SD |
| Aug 3, 2013 | 4.00″ (grapefruit) | Larimer County, CO |
| Aug 6, 2013 | 3.00″ (teacup) | Stevens County, MN |
| Aug 6, 2013 | 3.00″ (teacup) | Kandiyohi County, MN |
| Aug 26, 2013 | 3.00″ (teacup) | Otter Tail County, MN |
| Aug 26, 2013 | 3.00″ (teacup) | Otter Tail County, MN |
| Aug 30, 2013 | 3.00″ (teacup) | Morton County, ND |
| Aug 30, 2013 | 3.00″ (teacup) | Morton County, ND |
Storm reports by state, August 2013
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| Montana | 117 | 100 | 1 | 4.25″ |
| Minnesota | 144 | 60 | 5 | 3.00″ |
| Kansas | 96 | 96 | 3 | 4.25″ |
| South Dakota | 107 | 86 | 2 | 4.25″ |
| Nebraska | 102 | 67 | 0 | 2.75″ |
| North Dakota | 88 | 43 | 4 | 3.00″ |
| Wisconsin | 45 | 79 | 7 | 1.75″ |
| Texas | 23 | 89 | 6 | 1.75″ |
| Colorado | 60 | 22 | 7 | 4.00″ |
| Oklahoma | 30 | 51 | 1 | 2.75″ |
| Wyoming | 54 | 21 | 1 | 2.50″ |
| North Carolina | 14 | 48 | 0 | 1.25″ |
| Michigan | 23 | 34 | 2 | 1.50″ |
| Illinois | 23 | 28 | 0 | 1.75″ |
| Florida | 1 | 48 | 1 | 0.75″ |
| Iowa | 28 | 22 | 0 | 2.50″ |
| Virginia | 13 | 37 | 0 | 1.50″ |
| Pennsylvania | 10 | 38 | 1 | 1.75″ |
| Georgia | 3 | 43 | 1 | 1.00″ |
| Kentucky | 3 | 40 | 0 | 1.75″ |
| New Mexico | 39 | 3 | 0 | 2.00″ |
| Ohio | 24 | 12 | 1 | 1.25″ |
| Missouri | 8 | 27 | 0 | 1.75″ |
| Arizona | 7 | 26 | 0 | 1.00″ |
| Oregon | 24 | 8 | 0 | 1.75″ |
| South Carolina | 7 | 23 | 0 | 1.00″ |
| Arkansas | 4 | 21 | 0 | 1.75″ |
| New York | 7 | 16 | 0 | 1.25″ |
| Washington | 3 | 20 | 0 | 1.50″ |
| Indiana | 4 | 16 | 0 | 1.25″ |
| Tennessee | 2 | 17 | 0 | 1.00″ |
| Idaho | 9 | 8 | 0 | 1.50″ |
| Mississippi | 0 | 17 | 0 | – |
| Maryland | 0 | 13 | 1 | – |
| Maine | 5 | 9 | 0 | 1.75″ |
| California | 5 | 7 | 1 | 1.50″ |
| New Jersey | 1 | 10 | 1 | 0.88″ |
| Nevada | 2 | 10 | 0 | 1.00″ |
| Utah | 1 | 8 | 0 | 1.00″ |
| Alabama | 2 | 4 | 0 | 0.88″ |
| Massachusetts | 4 | 2 | 0 | 1.25″ |
| West Virginia | 1 | 5 | 0 | 1.00″ |
| Connecticut | 0 | 4 | 0 | – |
| Louisiana | 0 | 4 | 0 | – |
| District of Columbia | 0 | 3 | 0 | – |
| Delaware | 0 | 3 | 0 | – |
Every storm day in August 2013
Aug 1 Aug 2 Aug 3 Aug 4 Aug 5 Aug 6 Aug 7 Aug 8 Aug 9 Aug 10 Aug 11 Aug 12 Aug 13 Aug 14 Aug 15 Aug 16 Aug 17 Aug 18 Aug 19 Aug 20 Aug 21 Aug 22 Aug 23 Aug 24 Aug 25 Aug 26 Aug 27 Aug 28 Aug 29 Aug 30 Aug 31
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.