Hail history for Montgomery County, Maryland
Every NOAA hail report filed in Montgomery County since 1965, with preliminary National Weather Service reports to November 3, 2026.
Readout · Montgomery County
- Last hail
- May 3, 2025
- 1.00 in, quarter size
- Hail days, last 5 years
- 5
- since Nov 3, 2021 · 8 reports
- Largest ever
- 2.75 in
- baseball · May 2, 2016
191 reports on 97 days since 1965 · #1 of 25 Maryland counties
Hail map · Montgomery County
- 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 Montgomery County
The latest hail report in Montgomery County is from May 3, 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 August 29, 2024.
Over the 20 years 2006–2025, Montgomery County logged 106 reports on 44 hail days, about 5.3 reports a year. That is 3.5 times the median Maryland county (1.5 a year) and ranks #1 of 25 Maryland counties for all-time reports. Montgomery County holds 12% of all 1,592 hail reports in Maryland.
4% 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 2.75 in (baseball) on May 2, 2016 near 0.87 SW Rockville.
Reports held about level in 2016–2025 (55) compared with 2006–2015 (51). The busiest year was 2019, with 17 reports on 3 days. Hail here peaks in June (24% of reports); 64% fall between April and June.
Reports a year 2006–2025 average
- Montgomery County 5.3
- Median Maryland county 1.5
Hail days 2006–2025
- Montgomery County 44
- Median Maryland county 19
Share 2 in or larger of sized reports
- Montgomery County 4%
- Median Maryland county 4%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 1 | 1 | |||||||||||
| 2024 | 1 | 3 | 4 | ||||||||||
| 2023 | 1 | 1 | |||||||||||
| 2022 | 2 | 2 | |||||||||||
| 2021 | 1 | 4 | 5 | ||||||||||
| 2020 | 1 | 1 | 2 | ||||||||||
| 2019 | 16 | 1 | 17 | ||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 10 | 1 | 1 | 12 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| May 3, 2025 | 1 | 1.00 in | — |
| Aug 29, 2024 | 3 | 1.50 in | — |
| Apr 15, 2024 | 1 | 1.00 in | — |
| Sep 7, 2023 | 1 | 1.00 in | — |
| Jun 2, 2022 | 2 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| May 2, 2016 | 2.75 inbaseball | 0.87 SW Rockville | — | 17:50 local · NCEI |
| May 2, 2016 | 2.50 intennis ball | Rockville | — | 17:58 local · NCEI |
| Aug 26, 1965 | 2.50 intennis ball | — | — | 14:30 local · NCEI |
| Jun 2, 1998 | 2.25 inhen egg | Laytonsville | $75K | 18:35 local · NCEI |
| Jun 2, 2019 | 2.00 inhen egg | 0.69 N Cedar Grove | — | 16:45 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 69 36%
- 1–2 in 115 60%
- 2 in + 7 4%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| May 3, 2025 | 1.00 inquarter | 0.22 WSW Cedar Grove | 14:51 local · NCEI |
| Aug 29, 2024 | 1.50 inping pong ball | 1.59 SSW Germantown | 16:31 local · NCEI |
| Aug 29, 2024 | 1.00 inquarter | 1.46 SE Poolesville | 16:23 local · NCEI |
| Aug 29, 2024 | 1.50 inping pong ball | 0.45 NE Boyds | 16:12 local · NCEI |
| Apr 15, 2024 | 1.00 inquarter | 2.81 WNW Quince Orchard | 13:30 local · NCEI |
| Sep 7, 2023 | 1.00 inquarter | 0.33 SSW Kensington Estates | 16:30 local · NCEI |
| Jun 2, 2022 | 1.00 inquarter | 0.12 S Darnestown | 15:01 local · NCEI |
| Jun 2, 2022 | 1.00 inquarter | 3.89 SW Poolesville | 14:50 local · NCEI |
| Jul 28, 2021 | 1.00 inquarter | 1.25 W Redland | 20:35 local · NCEI |
| Jul 1, 2021 | 1.00 inquarter | 0.7 NE Cedar Grove | 13:17 local · NCEI |
| Jul 1, 2021 | 1.00 inquarter | 0.5 SE Wheaton | 12:50 local · NCEI |
| Jul 1, 2021 | 1.00 inquarter | 1.47 N Twin Brook | 12:48 local · NCEI |
Cities and towns in Montgomery County
| Place | Reports | Largest |
|---|---|---|
| Damascus | 22 | 2.00 in |
| Rockville | 15 | 2.75 in |
| Gaithersburg | 14 | 1.75 in |
| Germantown | 14 | 1.75 in |
| Aspen Hill | 13 | 2.50 in |
| Silver Spring | 12 | 1.75 in |
| Bethesda | 10 | 1.75 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 |
|---|---|---|---|
| Poolesville | 9 | 9 | Aug 29, 2024 |
| Wheaton | 9 | 7 | Jul 1, 2021 |
| Ashton-Sandy Spring | 7 | 4 | Aug 15, 2016 |
| Potomac | 7 | 6 | Jun 2, 2019 |
| Darnestown | 6 | 6 | Jun 2, 2022 |
| Olney | 6 | 5 | Aug 7, 2008 |
| Flower Hill | 4 | 4 | Jun 21, 2016 |
| Glenmont | 4 | 4 | Jun 2, 2019 |
| North Bethesda | 4 | 3 | Jun 2, 2019 |
| Colesville | 3 | 3 | Apr 3, 2006 |
| Laytonsville | 3 | 3 | Jul 17, 2017 |
| Burnt Mills | 2 | 2 | Jul 1, 2004 |
| Chevy Chase | 2 | 2 | Jun 17, 2019 |
| Clarksburg | 2 | 2 | Aug 7, 2008 |
| Fairland | 2 | 1 | Aug 18, 2011 |
| Layhill | 2 | 2 | Jun 2, 2019 |
| Redland | 2 | 2 | Jun 3, 2021 |
| Travilah | 2 | 2 | May 27, 2014 |
| Burtonsville | 1 | 1 | Apr 20, 2015 |
| Calverton | 1 | 1 | Aug 18, 2011 |
| Kemp Mill | 1 | 1 | Aug 18, 2011 |
| Kensington | 1 | 1 | Sep 7, 2023 |
| Montgomery Village | 1 | 1 | Jul 3, 1965 |
| North Potomac | 1 | 1 | Aug 20, 2019 |
| South Kensington | 1 | 1 | Jul 19, 2016 |
| Takoma Park | 1 | 1 | Apr 21, 2017 |
| White Oak | 1 | 1 | Jul 27, 2008 |
Questions about hail in Montgomery County
How often does it hail in Montgomery County, Maryland?
191 hail reports have been logged in Montgomery County since 1965. Over the 20 years 2006–2025 that averages 5.3 reports a year. That ranks #1 of 25 Maryland counties by number of reports.
When is hail season in Montgomery County?
Most reports come in June, April, May. June alone accounts for 24% of all reports.
What is the largest hail recorded in Montgomery County?
2.75 in (baseball size) on May 2, 2016 near 0.87 SW Rockville. 4% of reports here were 2 inches or larger.
When did it last hail in Montgomery County?
The most recent report in this data is from May 3, 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 Montgomery County had in the last five years?
5 separate days with hail reports since November 3, 2021, adding up to 8 reports. The most recent was May 3, 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.