Williamsport, PA Tornado History — 52 Tornadoes Since 1950
How many tornadoes has Williamsport, PA had?
Williamsport has had 52 tornadoes on record within 25 miles since 1950, including 3 strong to violent (EF3+) tornadoes.
When was the most recent tornado near Williamsport?
The most recent tornado within 25 miles of Williamsport was an EF1 on July 2, 2023.
When is tornado season in Williamsport?
July is historically the peak month for tornadoes near Williamsport, with 15 on record. April through June account for 21 of the 52 tornadoes on record near Williamsport.
At a Glance
Recent Tornado Activity Near Williamsport
The last 20 years of confirmed tornadoes within 25 miles — 12 total, averaging 0.6 per year over this window.
Preliminary tornado reports near Williamsport since December 29, 2025
This is a preliminary report, not confirmed tornadoes. It has not yet been through an NWS damage survey, and is not counted in the confirmed totals above.
Preliminary reports are revised, merged, and sometimes withdrawn — historically about 23% are consolidated downward once surveys complete. Ratings are omitted until a survey assigns one.
Confirmed records above are complete through December 29, 2025. NOAA publishes the confirmed archive annually, so tornadoes after that date appear here first and move into the totals above once finalized.
An EF-1 tornado... with peak winds of 100 mph... occurred in Derry Township. Path width 250 yds... length 0.87 mi. (CTP)
Within 25 miles of Williamsport. Quoted text is the report narrative exactly as filed. Source: NOAA Storm Prediction Center preliminary storm reports, updated daily.
Tornadoes by Decade
Tornadoes by Enhanced Fujita Rating
F0–F5 ratings (pre-2007) are grouped with their EF equivalents. The Enhanced Fujita scale replaced the original Fujita scale in February 2007.
Tornadoes by Month
Casualties on Record Near Williamsport
6 fatalities have been recorded within 25 miles of Williamsport since 1950, across 1 event. 62 injuries have been reported across all events. 1985 was the deadliest year on record near Williamsport.
The deadliest single event was an F3 on May 31, 1985, which caused 6 fatalities along a 19.0-mile track.
Notable Tornadoes Near Williamsport
What the record shows near Williamsport
The 1990s were the busiest decade near Williamsport, with 21 of the 52 confirmed tornadoes within 25 miles; the 2020s have produced 4 so far. The Williamsport record runs from the 1960s to today.
Of the tornadoes rated near Williamsport, 47 reached EF0 or EF1 and 5 reached EF2 or stronger. The most intense on record near Williamsport is rated EF4, of which 1 is logged.
Across the last 20 years Williamsport has averaged 0.6 confirmed tornadoes a year within 25 miles, 12 in total. 2023 was the busiest of them with 3, and 11 of those years passed with none at all.