Hail and tornadoes in Montgomery County, PA
Since December 2020, radar estimated hail somewhere in Montgomery County, PA on 27 days. The biggest estimate: 3 in or larger (teacup), on Mon, Jul 15, 2024. Hail was reported to the National Weather Service inside the county on 9 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 119 hail reports in Montgomery County, PA on 67 days, 0 of them 2 inches or larger. The largest: 1.75 in, near King Of Prussia, on Tue, Jun 6, 2023.
By decade: 1990s: 13 · 2000s: 33 · 2010s: 31 · 2020s: 42
Tornadoes since 1950
6 tornadoes have touched Montgomery County, PA since 1950, none of them rated F3/EF3 or stronger. They killed 1 and injured 2.
Strongest
- Wed, Sep 1, 2021 · EF2 · 8.28 mi long, 400 yd wide · near Flourtown · 1 death, 2 injuries
- Wed, Aug 18, 2021 · EF1 · 2.03 mi long, 140 yd wide · near Elroy
- Tue, Sep 23, 2003 · F1 · 0.8 mi long, 100 yd wide · near Narberth
- Mon, May 29, 1995 · F1 · 1.5 mi long, 50 yd wide · near Norristown To
- Mon, Nov 30, 2020 · EF0 · 0.87 mi long, 100 yd wide · near Montgomeryville Airport
Most recent
- Wed, Sep 1, 2021 · EF2 · 8.28 mi long, 400 yd wide · near Flourtown · 1 death, 2 injuries
- Wed, Aug 18, 2021 · EF1 · 2.03 mi long, 140 yd wide · near Elroy
- Mon, Nov 30, 2020 · EF0 · 0.87 mi long, 100 yd wide · near Montgomeryville Airport
- Tue, Aug 4, 2020 · EF0 · 3.14 mi long, 200 yd wide · near Hartranft
- Tue, Sep 23, 2003 · F1 · 0.8 mi long, 100 yd wide · near Narberth
- Mon, May 29, 1995 · F1 · 1.5 mi long, 50 yd wide · near Norristown To
By decade: 1990s: 1 · 2000s: 1 · 2020s: 4
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.
- Mon, Jul 27, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Jul 11, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, May 20, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Jul 8, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (Pottstown, PA)
- Tue, Jul 1, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jun 30, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Jun 19, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Aug 18, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
Reported in the county- 1 in (Skippack, PA)
- Mon, Jul 15, 2024
Radar estimate anywhere in the county: 3 in or larger (teacup)
No hail reported in the county.
- Sun, Jul 14, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Jun 14, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Sep 9, 2023Reported in the county
- 1 in (1 N Plymouth Meeting, PA)
- Fri, Sep 8, 2023
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: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Jul 25, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (Green Lane, PA)
- Thu, Jul 13, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Jun 27, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jun 26, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Jun 16, 2023Reported in the county
- 1 in (7 ENE Valley Forge, PA)
- Tue, Jun 6, 2023Reported in the county
- 1.75 in (King of Prussia, PA)
- Sat, Apr 1, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, May 22, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, May 20, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, May 16, 2022Reported in the county
- 1 in (POTTSTOWN, PA)
- Thu, Jul 29, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jul 21, 2021
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.25 in (BLUE BELL, PA)
- 1 in (ABINGTON, PA)
- Tue, Jul 6, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
Reported in the county- 1 in (EAGLEVILLE, PA)
- 1 in (ARDMORE, PA)
- Wed, Jun 30, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Jun 4, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, May 26, 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.