NOAA Storm Events · December 2017
Hail in December 2017: 21 NOAA reports across 5 states
NOAA logged 21 hail reports in December 2017, in 15 counties across 5 states. Missouri had the most (14). The largest stone was 1.5 inches (a ping-pong ball), near Brushy in Sequoyah County, Oklahoma, on December 4, 2017. The worst day was December 4, 2017, with 18 reports in 4 states.
- Where
- 15 counties in 5 states; Missouri had 67% of the reports
- Largest stone
- 1.5 inches, a ping-pong ball, in Sequoyah County, OK (near Brushy), on December 4, 2017
- Worst day
- December 4, 2017: 18 reports in 4 states, 86% of the month
- Days with hail
- 2 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
December 4, 2017 was the worst day with 18 reports. A day with hail averaged 10.
| December 1 | 0 |
|---|---|
| December 2 | 0 |
| December 3 | 0 |
| December 4 | 18 |
| December 5 | 0 |
| December 6 | 0 |
| December 7 | 0 |
| December 8 | 0 |
| December 9 | 0 |
| December 10 | 0 |
| December 11 | 0 |
| December 12 | 0 |
| December 13 | 0 |
| December 14 | 0 |
| December 15 | 0 |
| December 16 | 0 |
| December 17 | 0 |
| December 18 | 0 |
| December 19 | 0 |
| December 20 | 3 |
| December 21 | 0 |
| December 22 | 0 |
| December 23 | 0 |
| December 24 | 0 |
| December 25 | 0 |
| December 26 | 0 |
| December 27 | 0 |
| December 28 | 0 |
| December 29 | 0 |
| December 30 | 0 |
| December 31 | 0 |
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.
| MO | 14 |
|---|---|
| AL | 3 |
| OK | 2 |
| AR | 1 |
| WI | 1 |
| # | State | Reports | Share | Largest |
|---|---|---|---|---|
| 1 | Missouri | 14 | 66.7% | 1.25 in |
| 2 | Alabama | 3 | 14.3% | 1 in |
| 3 | Oklahoma | 2 | 9.5% | 1.5 in |
| 4 | Arkansas | 1 | 4.8% | 1 in |
| 5 | Wisconsin | 1 | 4.8% | 0.75 in |
| # | County | Reports | Largest |
|---|---|---|---|
| 1 | Madison County, AL | 3 | 1 in |
| 2 | Benton County, MO | 2 | 1 in |
| 3 | Greene County, MO | 2 | 0.88 in |
| 4 | Lafayette County, MO | 2 | 1 in |
| 5 | Sequoyah County, OK | 2 | 1.5 in |
| 6 | Adair County, MO | 1 | 1 in |
| 7 | Barry County, MO | 1 | 1.25 in |
| 8 | Bates County, MO | 1 | 0.88 in |
| 9 | Christian County, MO | 1 | 0.75 in |
| 10 | Johnson County, MO | 1 | 0.88 in |
County names link to the full hail history where we have published that county. The CSV below lists all 15 counties and all 5 states.
How December 2017 compares
| Compared with | Reports | December 2017 was |
|---|---|---|
| November 2017 | 51 | -30 (-59%) |
| December 2016 | 24 | -3 (-12%) |
| the average December in the other 11 years | 53 | -32 (-60%) |
December 2017 was the 9th busiest December of the 12 in the record and the 140th busiest of all 150 months.
| 2014 | 63 |
|---|---|
| 2015 | 91 |
| 2016 | 24 |
| 2017 | 21 |
| 2018 | 61 |
| 2019 | 39 |
| 2020 | 6 |
| 2021 | 123 |
| 2022 | 20 |
| 2023 | 101 |
| 2024 | 58 |
| 2025 | 2 |
Every December 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.