Hail and tornadoes in St. Mary's County, MD
Since December 2020, radar estimated hail somewhere in St. Mary's County, MD on 32 days. The biggest estimate: 2 in or larger (hen egg), on Thu, Apr 6, 2023. Hail was reported to the National Weather Service inside the county on 6 days.
Still loading: radar estimates go back to Wed, Oct 14, 2020, and the earlier years are being added.
Radar estimates are NOAA's MESH: the largest hail the radar estimates aloft, on cells about 0.7 mile across, shown as the lower bound of a size band (“1.5+”). They often run larger than what reached the ground, and they aren't evidence of damage at any address.

Hail on record since 1955
NOAA's Storm Events database lists 68 hail reports in St. Mary's County, MD on 41 days, 3 of them 2 inches or larger. The largest: 2.75 in, near Chingville, on Thu, Jun 13, 2013.
By decade: 1990s: 11 · 2000s: 22 · 2010s: 19 · 2020s: 16
Tornadoes since 1950
29 tornadoes have touched St. Mary's County, MD since 1950, none of them rated F3/EF3 or stronger.
Strongest
- Tue, Jul 1, 2025 · EF1 · 0.98 mi long, 100 yd wide · near Abells Wharf
- Fri, May 27, 2022 · EF1 · 2.82 mi long, 100 yd wide · near Oaks
- Sat, Jun 27, 2015 · EF1 · 12.22 mi long, 800 yd wide · near Mills Pt Shrs
- Thu, Apr 28, 2011 · EF1 · 3.37 mi long, 150 yd wide · near Abells Wharf
- Wed, Jul 14, 2004 · F1 · 3 mi long, 250 yd wide · near California
Most recent
- Tue, Jul 1, 2025 · EF1 · 0.98 mi long, 100 yd wide · near Abells Wharf
- Wed, Jun 8, 2022 · EF0 · 3.01 mi long, 75 yd wide · near Forest Hall
- Fri, May 27, 2022 · EF1 · 2.82 mi long, 100 yd wide · near Oaks
- Tue, Aug 4, 2020 · EF0 · 5.24 mi long, 100 yd wide · near Tall Timbers
- Tue, Aug 4, 2020 · EF0 · 1.47 mi long, 75 yd wide · near Scotland
- Wed, Feb 24, 2016 · EF0 · 6.55 mi long, 75 yd wide · near White Pt Beach
- Sat, Jun 27, 2015 · EF1 · 12.22 mi long, 800 yd wide · near Mills Pt Shrs
- Fri, Feb 21, 2014 · EF0 · 18 mi long, 75 yd wide · near Compton
- Thu, Jun 13, 2013 · EF0 · 1.8 mi long, 75 yd wide · near Sotterley
- Thu, Jun 13, 2013 · EF0 · 13.83 mi long, 200 yd wide · near Oakley
By decade: 1990s: 7 · 2000s: 6 · 2010s: 11 · 2020s: 5
Still loading: NOAA's record goes back to 1950, and 1995 onward is in so far.
Every hail day since December 2020
- Tue, Jul 28, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jul 22, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jul 6, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Jul 4, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Apr 1, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Aug 17, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Jul 19, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jul 14, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Jul 1, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, May 22, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
Reported in the county- 1.25 in (1 SE California, MD)
- Fri, May 16, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jul 31, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Jun 30, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jun 26, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Sep 7, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (2 WNW Sotterley, MD)
- Mon, Aug 14, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Aug 7, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Jul 25, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Jul 6, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Jun 16, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Apr 6, 2023
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1.75 in (1 SSE LEONARDTOWN, MD)
- 1.75 in (1 NNE CHARLOTTE HALL, MD)
- Sat, Apr 1, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (1 WSW CALIFORNIA, MD)
- Thu, Aug 4, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jul 25, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jul 18, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Jun 17, 2022
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Sun, Aug 22, 2021Reported in the county
- 1 in (2 W CALLAWAY, MD)
- Tue, Aug 10, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jul 28, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1.75 in (1 SSW CALIFORNIA, MD)
- Wed, Jul 14, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Jul 1, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Jun 9, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Jan 15, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Radar estimates and reports are for anywhere inside the county's boundary. Radar estimates come from NOAA's MRMS estimated hail size (MESH), the largest hail the radar estimates aloft on a ~1 km grid. They often run larger than the hail that reached the ground, and they aren't an observation at any address. Reports are what people reported to the National Weather Service. Neither is proof of damage or an official record for an insurance claim. From NOAA's Storm Events Database (NCEI), which records tornadoes from 1950, hail and thunderstorm wind from 1955, and every kind of storm from 1996. A tornado that crossed county lines is counted in each county it touched. Recent months are added as NCEI publishes them, a few months behind. Damage is in the dollars of its year and is often an estimate.