Hail History

Hail history for Gaithersburg, Maryland

NOAA hail reports in and within about 5 km (3 miles) of Gaithersburg since 1988, with preliminary reports to November 3, 2026.

Readout · Gaithersburg

Last hail
Jul 28, 2021
1.00 in, quarter size
Hail days, last 5 years
0
since Nov 3, 2021 · 0 reports
Largest ever
1.75 in
golf ball · May 2, 2002

14 reports on 11 days since 1988 · #11 of 33 Maryland places

Hail map · Gaithersburg

Gaithersburg Germantown Rockville Aspen Hill Damascus Bethesda Silver Spring Columbia 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
14 most recent reports with a location; Montgomery County is shaded. Open street map

For homeowners

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What the record says about Gaithersburg

The latest hail report in and around Gaithersburg is from July 28, 2021, 1.00 in (quarter size). There has been no hail report here in the five years since November 3, 2021.

Over the 20 years 2006–2025, Gaithersburg logged 4 reports on 3 hail days, about 0.2 reports a year. That is 43% less than the median Maryland town on this site (0.3 a year) and ranks #11 of 33 Maryland cities and towns on this site for all-time reports. Gaithersburg accounts for 7% of the 191 reports filed in Montgomery County.

0% 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 1.75 in (golf ball) on May 2, 2002 near Gaithersburg.

The busiest year was 1988, with 4 reports on 2 days. Hail here peaks in May (50% of reports); 64% fall between April and June.

Reports a year 2006–2025 average

  • Gaithersburg 0.2
  • Montgomery County 5.3
  • Median Maryland town on this site 0.3

Hail days 2006–2025

  • Gaithersburg 3
  • Montgomery County 44
  • Median Maryland town on this site 5

Share 2 in or larger of sized reports

  • Gaithersburg 0%
  • Montgomery County 4%
  • Median Maryland town on this site 0%

Hail over time

01234 1988: 4 reports, largest 1.75 in 1989: 2 reports, largest 0.75 in 1990 1991: 1 reports, largest 0.75 in 1995 2000: 1 reports, largest 1.25 in 2000 2001: 1 reports, largest 0.88 in 2002: 1 reports, largest 1.75 in 2005 2008: 2 reports, largest 0.88 in 2010 2015 2017: 1 reports, largest 1.00 in 2020 2021: 1 reports, largest 1.00 in 2025
Reports per year, 1988–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
02468 Jan Feb Mar April: 2 reports (14%) Apr May: 7 reports (50%) May Jun July: 2 reports (14%) Jul August: 2 reports (14%) Aug Sep Oct November: 1 reports (7%) Nov Dec
All 14 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 0
2024 0
2023 0
2022 0
2021 1 1
2020 0
2019 0
2018 0
2017 1 1

Largest hail on record

Largest hail reports in Gaithersburg
Date Size Location County Damage Time · source
May 2, 2002 1.75 ingolf ball Gaithersburg Montgomery — 14:30 local · NCEI
May 23, 1988 1.75 ingolf ball — Montgomery — 16:05 local · NCEI
May 23, 1988 1.75 ingolf ball — Montgomery — 15:00 local · NCEI
May 16, 1988 1.75 ingolf ball — Montgomery — 15:16 local · NCEI
Apr 21, 2000 1.25 inhalf dollar Gaithersburg Montgomery $20K 15:20 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

Most recent reports

Most recent hail reports in Gaithersburg
Date Size Location County Damage Time · source
Jul 28, 2021 1.00 inquarter 1.25 W Redland Montgomery — 20:35 local · NCEI
Apr 6, 2017 1.00 inquarter 0.94 SE Clopper Montgomery — 13:03 local · NCEI
Aug 14, 2008 0.88 innickel 0.69 S Montgomery Vlg Montgomery — 13:55 local · NCEI
Aug 14, 2008 0.75 inpenny 0.87 SE Clopper Montgomery — 13:54 local · NCEI
May 2, 2002 1.75 ingolf ball Gaithersburg Montgomery — 14:30 local · NCEI
Nov 25, 2001 0.88 innickel Gaithersburg Montgomery — 15:37 local · NCEI
Apr 21, 2000 1.25 inhalf dollar Gaithersburg Montgomery $20K 15:20 local · NCEI
Jul 7, 1991 0.75 inpenny — Montgomery — 12:30 local · NCEI
May 12, 1989 0.75 inpenny — Montgomery — 14:00 local · NCEI
May 6, 1989 0.75 inpenny — Montgomery — 14:30 local · NCEI
May 23, 1988 1.75 ingolf ball — Montgomery — 16:05 local · NCEI
May 23, 1988 1.75 ingolf ball — Montgomery — 15:00 local · NCEI

Hail history near Gaithersburg

Questions about hail in Gaithersburg

How often does it hail in Gaithersburg, Maryland?

14 hail reports have been logged in and within about 5 km (3 miles) of Gaithersburg since 1988. Over the 20 years 2006–2025 that averages 0.2 reports a year. That ranks #11 of 33 Maryland places by number of reports.

When is hail season in Gaithersburg?

Most reports come in May, April, July. May alone accounts for 50% of all reports.

What is the largest hail recorded in Gaithersburg?

1.75 in (golf ball size) on May 2, 2002 near Gaithersburg. 0% of reports here were 2 inches or larger.

When did it last hail in Gaithersburg?

The most recent report in this data is from July 28, 2021 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

How many hail storms has Gaithersburg had in the last five years?

None: there has been no hail report in and within about 5 km (3 miles) of Gaithersburg since November 3, 2021. The last one was on July 28, 2021.

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.