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Hail history for Frederick County, MD
57 hail reports in Frederick County since 2006 on 34 days. The largest stones measured 2.5 in (tennis ball) on May 15, 2018.
Cities in Frederick County
- Frederick
23 hail days - Ballenger Creek
21 hail days - Green Valley
22 hail days - Urbana
23 hail days - Linganore
21 hail days - Thurmont
16 hail days - Brunswick
21 hail days - Walkersville
18 hail days - Spring Ridge
24 hail days - Middletown
24 hail days - Clover Hill
21 hail days - Emmitsburg
10 hail days - Braddock Heights
21 hail days
Recent hail in Frederick County
| Date | Hail size | Where |
|---|---|---|
| Mar 16, 2025 | 1 in quarter | Middletown, Braddock Hgts 2 hail reports |
One row per day: the largest hail reported in the county that day, the places and the number of reports.
Hail days in Frederick County by year
When hail season peaks in Frederick County
Damaging thunderstorm winds in Frederick County
528 reports of damaging thunderstorm wind in Frederick County since 2006, on 196 days. The strongest measured gust was 81 mph on Apr 19, 2025.
| Date | Strongest gust | Where |
|---|---|---|
| Sep 3, 2026 | damage reported | Frederick, Buckeystown 2 wind reports |
| Sep 2, 2026 | damage reported | Wolfsville, Pleasant Walk, Park Mills 8 wind reports |
| Aug 27, 2026 | damage reported | Arnoldtown, Petersville, Rosemont 14 wind reports |
| Aug 20, 2026 | damage reported | Brunswick 1 wind report |
| Aug 10, 2026 | damage reported | Wolfsville, Middletown, Myersville 8 wind reports |
| Jul 28, 2026 | damage reported | Thurmont, Woodsboro, Walkersville 3 wind reports |
| Jul 18, 2026 | damage reported | Jefferson, Ballenger Creek, Arnoldtown 9 wind reports |
| Jul 9, 2026 | damage reported | Frederick 1 wind report |
| Jul 4, 2026 | damage reported | Arnoldtown, Middletown, Frederick 12 wind reports |
| Jun 14, 2026 | 81 mph, estimated | Unionville 1 wind report |
Severe thunderstorm wind means gusts of 58 mph or more, or wind that caused damage. Measured gusts come from weather stations; estimated ones from spotters and damage surveys.
Filing a roof or car hail claim?
Insurers ask for the date of loss. The dates on this page are when hail was reported near Frederick County; hail can hit one street and miss the next, so a report is not proof of damage at your address. A licensed roofer or your insurance adjuster can inspect the roof. Many policies set a time limit for filing a claim — check yours.
Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then).