Hail history for Frederick County, Maryland
Every NOAA hail report filed in Frederick County since 1957, with preliminary National Weather Service reports to November 3, 2026.
Readout · Frederick County
- Last hail
- Mar 16, 2025
- 1.00 in, quarter size
- Hail days, last 5 years
- 5
- since Nov 3, 2021 · 7 reports
- Largest ever
- 2.50 in
- tennis ball · May 15, 2018
86 reports on 60 days since 1957 · #7 of 25 Maryland counties
Hail map · Frederick County
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
Roof damage after hail? Get a free inspection
Hail bruises shingles and cracks seals in ways you can't see from the ground, and most insurers set a claim deadline after the storm. The latest hail report in Frederick County is from March 16, 2025. A local roofer can check and document it at no cost.
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What the record says about Frederick County
The latest hail report in Frederick County is from March 16, 2025, 1.00 in (quarter size). Since November 3, 2021 there have been 5 separate hail days; the biggest stones in that time were 1.50 in on September 7, 2023.
Over the 20 years 2006–2025, Frederick County logged 57 reports on 34 hail days, about 2.9 reports a year. That is about twice the median Maryland county (1.5 a year) and ranks #7 of 25 Maryland counties for all-time reports. Frederick County holds 5% of all 1,592 hail reports in Maryland.
2% of reports with a size were 2 inches (hen egg) or larger, against 4% for the median Maryland county. The largest hail on record here is 2.50 in (tennis ball) on May 15, 2018 near 1.47 WNW Frederick.
Reports were down 37% in 2016–2025 (22) compared with 2006–2015 (35). The busiest year was 2009, with 8 reports on 3 days. Hail here peaks in June (31% of reports); 63% fall between April and June.
Reports a year 2006–2025 average
- Frederick County 2.9
- Median Maryland county 1.5
Hail days 2006–2025
- Frederick County 34
- Median Maryland county 19
Share 2 in or larger of sized reports
- Frederick County 2%
- Median Maryland county 4%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 2 | 2 | |||||||||||
| 2024 | 1 | 1 | 2 | ||||||||||
| 2023 | 1 | 2 | 3 | ||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 2 | 2 | |||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 4 | 4 | |||||||||||
| 2017 | 1 | 2 | 3 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Mar 16, 2025 | 2 | 1.00 in | — |
| Aug 29, 2024 | 1 | 1.00 in | — |
| May 23, 2024 | 1 | 1.00 in | — |
| Sep 7, 2023 | 2 | 1.50 in | — |
| Jun 26, 2023 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| May 15, 2018 | 2.50 intennis ball | 1.47 WNW Frederick | 18:25 local · NCEI |
| May 10, 2000 | 2.50 intennis ball | Ladiesburg | 14:08 local · NCEI |
| Aug 22, 2019 | 1.75 ingolf ball | 1.06 E Thurmont | 17:29 local · NCEI |
| May 15, 2018 | 1.75 ingolf ball | 1 N Frederick | 17:46 local · NCEI |
| Jun 21, 2016 | 1.75 ingolf ball | 0.87 SE Feagaville | 18:40 local · NCEI |
Size of every report
- Under 1 in 28 33%
- 1–2 in 55 65%
- 2 in + 2 2%
- No size 1
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Mar 16, 2025 | 1.00 inquarter | 1.04 WNW Braddock Hgts | 19:54 local · NCEI |
| Mar 16, 2025 | 1.00 inquarter | 0.5 SSE Middletown | 19:52 local · NCEI |
| Aug 29, 2024 | 1.00 inquarter | 0.57 N Frederick Arpt | 17:20 local · NCEI |
| May 23, 2024 | 1.00 inquarter | 1.04 E Points Of Rocks | 17:27 local · NCEI |
| Sep 7, 2023 | 1.00 inquarter | 1.24 SE Adamstown | 13:42 local · NCEI |
| Sep 7, 2023 | 1.50 inping pong ball | 1.06 SSE Adamstown | 13:40 local · NCEI |
| Jun 26, 2023 | 1.00 inquarter | 0.6 SE Blue Mtn | 17:30 local · NCEI |
| Aug 7, 2020 | 1.00 inquarter | 1.94 NNW Braddock Hgts | 13:57 local · NCEI |
| Aug 7, 2020 | 1.00 inquarter | 1.4 SSE Myersville | 13:56 local · NCEI |
| Aug 22, 2019 | 1.75 ingolf ball | 1.06 E Thurmont | 17:29 local · NCEI |
| May 15, 2018 | 1.25 inhalf dollar | 0.88 SSE Burkittsville | 19:00 local · NCEI |
| May 15, 2018 | 1.00 inquarter | 0.69 NW Ft Detrick | 18:25 local · NCEI |
Cities and towns in Frederick County
| Place | Reports | Largest |
|---|---|---|
| Frederick | 19 | 2.50 in |
Smaller places with fewer than 10 reports
These places have too few reports for a page of their own, so their record lives here.
| Place | Reports | Hail days | Latest |
|---|---|---|---|
| Green Valley | 9 | 7 | Aug 12, 2017 |
| Ballenger Creek | 8 | 6 | Jun 21, 2016 |
| Myersville | 7 | 7 | Aug 7, 2020 |
| Brunswick | 4 | 3 | Jun 21, 2016 |
| Jefferson | 4 | 3 | Jun 21, 2016 |
| Walkersville | 4 | 4 | Jun 13, 2013 |
| Adamstown | 3 | 2 | Sep 7, 2023 |
| Burkittsville | 3 | 3 | May 15, 2018 |
| Thurmont | 3 | 3 | Jun 26, 2023 |
| Emmitsburg | 2 | 2 | Jul 12, 2022 |
| Libertytown | 2 | 1 | Jun 13, 2013 |
| Middletown | 2 | 1 | Mar 16, 2025 |
| New Market | 2 | 2 | Jun 8, 1990 |
| Point of Rocks | 2 | 2 | May 23, 2024 |
| Urbana | 2 | 2 | Jun 21, 2016 |
| Woodsboro | 2 | 2 | Feb 25, 2017 |
| Braddock Heights | 1 | 1 | Apr 17, 1998 |
| Monrovia | 1 | 1 | May 17, 2004 |
Questions about hail in Frederick County
How often does it hail in Frederick County, Maryland?
86 hail reports have been logged in Frederick County since 1957. Over the 20 years 2006–2025 that averages 2.9 reports a year. That ranks #7 of 25 Maryland counties by number of reports.
When is hail season in Frederick County?
Most reports come in June, May, July. June alone accounts for 31% of all reports.
What is the largest hail recorded in Frederick County?
2.50 in (tennis ball size) on May 15, 2018 near 1.47 WNW Frederick. 2% of reports here were 2 inches or larger.
When did it last hail in Frederick County?
The most recent report in this data is from March 16, 2025 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Frederick County had in the last five years?
5 separate days with hail reports since November 3, 2021, adding up to 7 reports. The most recent was March 16, 2025.
Where does this hail data come from?
Hail reports come from the NOAA NCEI Storm Events Database, which the National Weather Service compiles from spotter, public, law enforcement and media reports. Recent days use preliminary NWS Local Storm Reports via the Iowa Environmental Mesonet until NOAA publishes final data. Only reported hail is counted, so areas with fewer people tend to have fewer reports.