NOAA Storm Events · July 2018
Hail in July 2018: 1,140 NOAA reports across 37 states
NOAA logged 1,140 hail reports in July 2018, in 433 counties across 37 states. Colorado had the most (133). The largest stone was 4 inches (a grapefruit), near Tompkinsville in Monroe County, Kentucky, on July 20, 2018. The worst day was July 20, 2018, with 145 reports in 8 states.
- Where
- 433 counties in 37 states; Colorado had 12% of the reports
- Largest stone
- 4 inches, a grapefruit, in Monroe County, KY (near Tompkinsville), on July 20, 2018
- Worst day
- July 20, 2018: 145 reports in 8 states, 13% of the month
- Days with hail
- 31 of 31 days had at least one report
- under 1 in
- 1 to 1.74 in
- 1.75 to 2.74 in
- 2.75 in and up
Day by day
July 20, 2018 was the worst day with 145 reports. A day with hail averaged 37.
| July 1 | 7 |
|---|---|
| July 2 | 66 |
| July 3 | 35 |
| July 4 | 16 |
| July 5 | 10 |
| July 6 | 3 |
| July 7 | 3 |
| July 8 | 22 |
| July 9 | 20 |
| July 10 | 17 |
| July 11 | 8 |
| July 12 | 8 |
| July 13 | 7 |
| July 14 | 8 |
| July 15 | 6 |
| July 16 | 21 |
| July 17 | 24 |
| July 18 | 37 |
| July 19 | 80 |
| July 20 | 145 |
| July 21 | 107 |
| July 22 | 47 |
| July 23 | 16 |
| July 24 | 24 |
| July 25 | 50 |
| July 26 | 62 |
| July 27 | 97 |
| July 28 | 53 |
| July 29 | 104 |
| July 30 | 16 |
| July 31 | 21 |
Where it hit hardest
Ranked by NOAA hail reports. A report is one spotter or sensor entry for one county and storm, so counts follow where people live as well as where hail fell.
| CO | 133 |
|---|---|
| WY | 102 |
| SD | 99 |
| NE | 92 |
| MT | 83 |
| KS | 75 |
| ND | 65 |
| MN | 50 |
| KY | 49 |
| MO | 47 |
| # | State | Reports | Share | Largest |
|---|---|---|---|---|
| 1 | Colorado | 133 | 11.7% | 3.5 in |
| 2 | Wyoming | 102 | 8.9% | 2 in |
| 3 | South Dakota | 99 | 8.7% | 3.25 in |
| 4 | Nebraska | 92 | 8.1% | 3 in |
| 5 | Montana | 83 | 7.3% | 2 in |
| 6 | Kansas | 75 | 6.6% | 3.5 in |
| 7 | North Dakota | 65 | 5.7% | 2.75 in |
| 8 | Minnesota | 50 | 4.4% | 2.75 in |
| 9 | Kentucky | 49 | 4.3% | 4 in |
| 10 | Missouri | 47 | 4.1% | 2.75 in |
| # | County | Reports | Largest |
|---|---|---|---|
| 1 | Laramie County, WY | 30 | 2 in |
| 2 | Pennington County, SD | 19 | 2 in |
| 3 | Campbell County, WY | 16 | 1.5 in |
| 4 | Jefferson County, KY | 16 | 2 in |
| 5 | Hand County, SD | 14 | 2.5 in |
| 6 | Yuma County, CO | 14 | 1.5 in |
| 7 | Lawrence County, SD | 13 | 1.75 in |
| 8 | Stillwater County, MT | 13 | 2 in |
| 9 | Weld County, CO | 13 | 2.5 in |
| 10 | Yellowstone County, MT | 13 | 1.75 in |
County names link to the full hail history where we have published that county. The CSV below lists all 433 counties and all 37 states.
How July 2018 compares
| Compared with | Reports | July 2018 was |
|---|---|---|
| June 2018 | 1,822 | -682 (-37%) |
| July 2017 | 1,064 | +76 (+7%) |
| the average July in the other 11 years | 1,180 | -40 (-3%) |
July 2018 was the 6th busiest July of the 12 in the record and the 42nd busiest of all 150 months.
| 2014 | 1287 |
|---|---|
| 2015 | 1122 |
| 2016 | 1560 |
| 2017 | 1064 |
| 2018 | 1140 |
| 2019 | 1141 |
| 2020 | 1392 |
| 2021 | 764 |
| 2022 | 898 |
| 2023 | 2139 |
| 2024 | 844 |
| 2025 | 768 |
Every July in the record, 2014 to 2025. Months after June 2026 are not in NOAA's file yet.
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Download the data
Source: NOAA NCEI Storm Events Database, hail rows at county level, data through June 2026. Reports are preliminary and unverified: they show that hail was reported in a county, not that a given roof was damaged. Method: how we count. More: State of Hail by year · county hail history · press.
Source: NOAA Storm Events Database, public domain. Counts and tables on this page are free to reuse with credit to PickARoofer under CC BY 4.0.