Hail and tornadoes in Butler County, PA
Since December 2020, radar estimated hail somewhere in Butler County, PA on 49 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 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 170 hail reports in Butler County, PA on 68 days, 4 of them 2 inches or larger. The largest: 2.5 in, near Chicora, on Sat, Mar 28, 2020.
By decade: 1990s: 5 · 2000s: 50 · 2010s: 55 · 2020s: 60
Tornadoes since 1950
19 tornadoes have touched Butler County, PA since 1950, none of them rated F3/EF3 or stronger.
Strongest
- Sun, Jun 14, 2026 · EF1 · 3.21 mi long, 60 yd wide · near Park View
- Sun, Jun 14, 2026 · EF1 · 2.45 mi long, 175 yd wide · near West Liberty
- Thu, Oct 21, 2021 · EF1 · 0.55 mi long, 110 yd wide · near Middle Lancaster
- Sun, Jun 16, 2019 · EF1 · 1.04 mi long, 400 yd wide · near Bonus
- Sun, Apr 28, 2002 · F1 · 7 mi long, 50 yd wide · near Butler
Most recent
- Tue, Jul 21, 2026 · EF0 · 0.23 mi long, 30 yd wide · near Middle Lancaster
- Tue, Jul 21, 2026 · EF0 · 0.23 mi long, 50 yd wide · near Portersville
- Sun, Jun 14, 2026 · EF0 · 2.61 mi long, 150 yd wide · near Elora
- Sun, Jun 14, 2026 · EF1 · 2.45 mi long, 175 yd wide · near West Liberty
- Sun, Jun 14, 2026 · EF1 · 3.21 mi long, 60 yd wide · near Park View
- Wed, May 21, 2025 · EF0 · 0.24 mi long, 210 yd wide · near Jamisonville
- Wed, May 21, 2025 · EF0 · 0.36 mi long, 160 yd wide · near Fisher Hgts
- Thu, Oct 21, 2021 · EF0 · 8.72 mi long, 300 yd wide · near Mt Chestnut
- Thu, Oct 21, 2021 · EF1 · 0.55 mi long, 110 yd wide · near Middle Lancaster
- Sun, Jun 16, 2019 · EF1 · 1.04 mi long, 400 yd wide · near Bonus
By decade: 2000s: 3 · 2010s: 7 · 2020s: 9
Still loading: NOAA's record goes back to 1950, and 1995 onward is in so far.
Every hail day since December 2020
- Thu, Sep 10, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Sep 3, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Sep 2, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Aug 27, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Aug 22, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Sat, Aug 15, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Aug 8, 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.
- Fri, Jul 3, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Jun 26, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Jun 12, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jun 10, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Apr 29, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Mar 25, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Mar 22, 2026Reported in the county
- 1 in (Butler, PA)
- Sat, Mar 7, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Nov 7, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Aug 28, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Aug 4, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, Jul 26, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Jul 8, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jul 7, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Apr 19, 2025Reported in the county
- 1 in (1 NNW Mars, PA)
- Wed, Apr 9, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Mar 20, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Mar 5, 2025
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Thu, Feb 27, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Feb 3, 2025
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Fri, Oct 18, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Oct 6, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (Elora, PA)
- Mon, Sep 30, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Aug 6, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jul 15, 2024
Radar estimate anywhere in the county: 3 in or larger (teacup)
No hail reported in the county.
- Mon, Jun 17, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, May 25, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Apr 17, 2024Reported in the county
- 1.25 in (2 W Parker, PA)
- Sun, Apr 14, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.75 in (Greenwood Village, PA)
- 2 in (Slippery Rock Park, PA)
- 1 in (North Washington, PA)
- 1 in (SE Slippery Rock, PA)
- 1 in (Karns City, PA)
- and 2 more
- Sun, Mar 17, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Mar 14, 2024Reported in the county
- 1.25 in (Zelienople, PA)
- Tue, Jan 23, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Dec 17, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Nov 28, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Jul 27, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Aug 26, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jun 22, 2022
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Thu, Jun 16, 2022
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Wed, Jun 1, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Sep 22, 2021
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Wed, Sep 1, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Aug 12, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Jul 20, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jul 7, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Jun 3, 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.