Hail history for Frederick, Maryland
NOAA hail reports in and within about 5 km (3 miles) of Frederick since 1982, with preliminary reports to November 3, 2026.
Readout · Frederick
- Last hail
- Aug 29, 2024
- 1.00 in, quarter size
- Hail days, last 5 years
- 1
- since Nov 3, 2021 · 1 report
- Largest ever
- 2.50 in
- tennis ball · May 15, 2018
19 reports on 15 days since 1982 · #5 of 33 Maryland places
Hail map · Frederick
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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What the record says about Frederick
The latest hail report in and around Frederick is from August 29, 2024, 1.00 in (quarter size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.00 in on August 29, 2024.
Over the 20 years 2006–2025, Frederick logged 12 reports on 8 hail days, about 0.6 reports a year. That is 71% more than the median Maryland town on this site (0.3 a year) and ranks #5 of 33 Maryland cities and towns on this site for all-time reports. Frederick accounts for 22% of the 86 reports filed in Frederick County.
5% of reports with a size were 2 inches (hen egg) or larger, against 0% for the median Maryland town on this site. The largest hail on record here is 2.50 in (tennis ball) on May 15, 2018 near 1.47 WNW Frederick.
Reports held about level in 2016–2025 (6) compared with 2006–2015 (6). The busiest year was 2018, with 3 reports on 1 day. Hail here peaks in June (32% of reports); 63% fall between April and June.
Reports a year 2006–2025 average
- Frederick 0.6
- Frederick County 2.9
- Median Maryland town on this site 0.3
Hail days 2006–2025
- Frederick 8
- Frederick County 34
- Median Maryland town on this site 5
Share 2 in or larger of sized reports
- Frederick 5%
- Frederick County 2%
- Median Maryland town on this site 0%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 1 | 1 | |||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 3 | 3 | |||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Aug 29, 2024 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| May 15, 2018 | 2.50 intennis ball | 1.47 WNW Frederick | Frederick | 18:25 local · NCEI |
| May 15, 2018 | 1.75 ingolf ball | 1 N Frederick | Frederick | 17:46 local · NCEI |
| Jun 26, 2009 | 1.50 inping pong ball | 2.02 NW Frederick | Frederick | 15:21 local · NCEI |
| Mar 29, 1997 | 1.50 inping pong ball | 2 N Frederick | Frederick | 12:15 local · NCEI |
| Jul 27, 1982 | 1.50 inping pong ball | — | Frederick | 15:25 local · NCEI |
Sizes filed before 1996 are often rough estimates (round numbers like 7.00 or 8.00 in) without an exact spot; they are shown as NOAA filed them.
Size of every report
- Under 1 in 5 26%
- 1–2 in 13 68%
- 2 in + 1 5%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Aug 29, 2024 | 1.00 inquarter | 0.57 N Frederick Arpt | Frederick | 17:20 local · NCEI |
| Aug 7, 2020 | 1.00 inquarter | 1.94 NNW Braddock Hgts | Frederick | 13:57 local · NCEI |
| May 15, 2018 | 1.00 inquarter | 0.69 NW Ft Detrick | Frederick | 18:25 local · NCEI |
| May 15, 2018 | 2.50 intennis ball | 1.47 WNW Frederick | Frederick | 18:25 local · NCEI |
| May 15, 2018 | 1.75 ingolf ball | 1 N Frederick | Frederick | 17:46 local · NCEI |
| Aug 12, 2017 | 1.00 inquarter | 1.03 NNW Frederick | Frederick | 16:31 local · NCEI |
| Jun 16, 2014 | 1.25 inhalf dollar | 2.07 N Braddock Hgts | Frederick | 17:57 local · NCEI |
| Jun 17, 2011 | 1.00 inquarter | 1.6 WNW Frederick | Frederick | 15:30 local · NCEI |
| Jun 26, 2009 | 1.00 inquarter | 0.69 N Frederick | Frederick | 15:25 local · NCEI |
| Jun 26, 2009 | 1.00 inquarter | 1.03 WSW Frederick | Frederick | 15:25 local · NCEI |
| Jun 26, 2009 | 1.50 inping pong ball | 2.02 NW Frederick | Frederick | 15:21 local · NCEI |
| Apr 3, 2006 | 0.75 inpenny | Frederick | Frederick | 17:45 local · NCEI |
Hail history near Frederick
- Damascus 26 km · 22
- Germantown 32 km · 14
- Hagerstown 35 km · 23
- Gaithersburg 37 km · 14
- Westminster 38 km · 11
- Eldersburg 40 km · 10
- Rockville 45 km · 15
- Aspen Hill 48 km · 13
Questions about hail in Frederick
How often does it hail in Frederick, Maryland?
19 hail reports have been logged in and within about 5 km (3 miles) of Frederick since 1982. Over the 20 years 2006–2025 that averages 0.6 reports a year. That ranks #5 of 33 Maryland places by number of reports.
When is hail season in Frederick?
Most reports come in June, May, August. June alone accounts for 32% of all reports.
What is the largest hail recorded in Frederick?
2.50 in (tennis ball size) on May 15, 2018 near 1.47 WNW Frederick. 5% of reports here were 2 inches or larger.
When did it last hail in Frederick?
The most recent report in this data is from August 29, 2024 (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 had in the last five years?
1 separate days with hail reports since November 3, 2021, adding up to 1 reports. The most recent was August 29, 2024.
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.