NOAA Storm Events · July 2021
Hail in July 2021: 764 NOAA reports across 40 states
NOAA logged 764 hail reports in July 2021, in 340 counties across 40 states. South Dakota had the most (85). The largest stone was 4.3 inches (a grapefruit), near Berea in Box Butte County, Nebraska, on July 9, 2021. The worst day was July 9, 2021, with 120 reports in 11 states.
- Where
- 340 counties in 40 states; South Dakota had 11% of the reports
- Largest stone
- 4.3 inches, a grapefruit, in Box Butte County, NE (near Berea), on July 9, 2021
- Worst day
- July 9, 2021: 120 reports in 11 states, 16% 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 9, 2021 was the worst day with 120 reports. A day with hail averaged 25.
| July 1 | 13 |
|---|---|
| July 2 | 12 |
| July 3 | 20 |
| July 4 | 24 |
| July 5 | 5 |
| July 6 | 46 |
| July 7 | 19 |
| July 8 | 67 |
| July 9 | 120 |
| July 10 | 17 |
| July 11 | 24 |
| July 12 | 5 |
| July 13 | 15 |
| July 14 | 19 |
| July 15 | 9 |
| July 16 | 23 |
| July 17 | 26 |
| July 18 | 25 |
| July 19 | 10 |
| July 20 | 29 |
| July 21 | 29 |
| July 22 | 5 |
| July 23 | 39 |
| July 24 | 3 |
| July 25 | 39 |
| July 26 | 42 |
| July 27 | 19 |
| July 28 | 25 |
| July 29 | 23 |
| July 30 | 5 |
| July 31 | 7 |
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.
| SD | 85 |
|---|---|
| IA | 66 |
| MN | 52 |
| MT | 46 |
| WY | 41 |
| PA | 40 |
| ND | 38 |
| KS | 36 |
| NJ | 36 |
| WI | 32 |
| # | State | Reports | Share | Largest |
|---|---|---|---|---|
| 1 | South Dakota | 85 | 11.1% | 3.75 in |
| 2 | Iowa | 66 | 8.6% | 3.25 in |
| 3 | Minnesota | 52 | 6.8% | 3 in |
| 4 | Montana | 46 | 6.0% | 2 in |
| 5 | Wyoming | 41 | 5.4% | 2.75 in |
| 6 | Pennsylvania | 40 | 5.2% | 1.5 in |
| 7 | North Dakota | 38 | 5.0% | 2.75 in |
| 8 | Kansas | 36 | 4.7% | 2 in |
| 9 | New Jersey | 36 | 4.7% | 2.5 in |
| 10 | Wisconsin | 32 | 4.2% | 3 in |
| # | County | Reports | Largest |
|---|---|---|---|
| 1 | Polk County, IA | 24 | 3.25 in |
| 2 | Beltrami County, MN | 14 | 2.75 in |
| 3 | Montgomery County, PA | 14 | 1.25 in |
| 4 | Laramie County, WY | 13 | 1.75 in |
| 5 | Niagara County, NY | 13 | 2.5 in |
| 6 | Custer County, SD | 12 | 2.25 in |
| 7 | Box Butte County, NE | 11 | 4.3 in |
| 8 | Boone County, IA | 10 | 2.75 in |
| 9 | Bergen County, NJ | 9 | 2.5 in |
| 10 | Pennington County, SD | 9 | 2.75 in |
County names link to the full hail history where we have published that county. The CSV below lists all 340 counties and all 40 states.
How July 2021 compares
| Compared with | Reports | July 2021 was |
|---|---|---|
| June 2021 | 1,006 | -242 (-24%) |
| July 2020 | 1,392 | -628 (-45%) |
| the average July in the other 11 years | 1,214 | -450 (-37%) |
July 2021 was the 12th busiest July of the 12 in the record and the 62nd 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.
Quote this
Free to quote with credit under CC BY 4.0. Copy the sentence and the citation together.
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.