NOAA Storm Events · August 2015
Hail in August 2015: 1,022 NOAA reports across 43 states
NOAA logged 1,022 hail reports in August 2015, in 408 counties across 43 states. Wisconsin had the most (125). The largest stone was 4.5 inches (a softball), near West Branch in Ogemaw County, Michigan, on August 2, 2015. The worst day was August 2, 2015, with 247 reports in 9 states.
- Where
- 408 counties in 43 states; Wisconsin had 12% of the reports
- Largest stone
- 4.5 inches, a softball, in Ogemaw County, MI (near West Branch), on August 2, 2015
- Worst day
- August 2, 2015: 247 reports in 9 states, 24% of the month
- Days with hail
- 30 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
August 2, 2015 was the worst day with 247 reports. A day with hail averaged 34.
| August 1 | 31 |
|---|---|
| August 2 | 247 |
| August 3 | 122 |
| August 4 | 144 |
| August 5 | 16 |
| August 6 | 31 |
| August 7 | 49 |
| August 8 | 41 |
| August 9 | 42 |
| August 10 | 10 |
| August 11 | 6 |
| August 12 | 43 |
| August 13 | 17 |
| August 14 | 30 |
| August 15 | 25 |
| August 16 | 14 |
| August 17 | 31 |
| August 18 | 31 |
| August 19 | 4 |
| August 20 | 3 |
| August 21 | 11 |
| August 22 | 24 |
| August 23 | 2 |
| August 24 | 6 |
| August 25 | 3 |
| August 26 | 3 |
| August 27 | 24 |
| August 28 | 10 |
| August 29 | 1 |
| August 30 | 0 |
| August 31 | 1 |
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.
| WI | 125 |
|---|---|
| MN | 113 |
| KS | 79 |
| MA | 61 |
| SD | 61 |
| NE | 59 |
| MI | 55 |
| ME | 52 |
| CO | 47 |
| PA | 40 |
| # | State | Reports | Share | Largest |
|---|---|---|---|---|
| 1 | Wisconsin | 125 | 12.2% | 4 in |
| 2 | Minnesota | 113 | 11.1% | 4.25 in |
| 3 | Kansas | 79 | 7.7% | 2.75 in |
| 4 | Massachusetts | 61 | 6.0% | 2 in |
| 5 | South Dakota | 61 | 6.0% | 2 in |
| 6 | Nebraska | 59 | 5.8% | 2.5 in |
| 7 | Michigan | 55 | 5.4% | 4.5 in |
| 8 | Maine | 52 | 5.1% | 2.5 in |
| 9 | Colorado | 47 | 4.6% | 3.5 in |
| 10 | Pennsylvania | 40 | 3.9% | 2.5 in |
| # | County | Reports | Largest |
|---|---|---|---|
| 1 | Middlesex County, MA | 26 | 2 in |
| 2 | Worcester County, MA | 21 | 1.75 in |
| 3 | Roseau County, MN | 19 | 4.25 in |
| 4 | Union County, NM | 17 | 2.75 in |
| 5 | Sawyer County, WI | 16 | 3 in |
| 6 | Allegheny County, PA | 14 | 1.25 in |
| 7 | Butler County, OH | 13 | 1.75 in |
| 8 | Washington County, WI | 12 | 2.5 in |
| 9 | Otter Tail County, MN | 11 | 2.5 in |
| 10 | Becker County, MN | 10 | 2.5 in |
County names link to the full hail history where we have published that county. The CSV below lists all 408 counties and all 43 states.
How August 2015 compares
| Compared with | Reports | August 2015 was |
|---|---|---|
| July 2015 | 1,122 | -100 (-9%) |
| August 2014 | 768 | +254 (+33%) |
| the average August in the other 11 years | 763 | +259 (+34%) |
August 2015 was the 2nd busiest August of the 12 in the record and the 48th busiest of all 150 months.
| 2014 | 768 |
|---|---|
| 2015 | 1022 |
| 2016 | 568 |
| 2017 | 769 |
| 2018 | 863 |
| 2019 | 1287 |
| 2020 | 974 |
| 2021 | 735 |
| 2022 | 378 |
| 2023 | 920 |
| 2024 | 636 |
| 2025 | 494 |
Every August 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.