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Northumberland storm history

Storm events recorded in Northumberland, Pennsylvania between 1950 and 2025.

441
Total events
14
Tornadoes
38
Hail
47
Floods
2
Deaths
$27.0M
Property damage

Most significant events

Strongest tornadoes, deadliest events, and biggest damage in this county. Up to 50 shown.

May 31, 1985 · Northumberland, Pennsylvania
Tornado F3 Tornado2 deaths, 20 injuries, $25.0M damage
July 18, 2003 · Northumberland, Pennsylvania
Lightning Lightning6 injuries
Lightning struck a tent at Knoebles Amusement Park, injuring 6 people. Four were taken to the hospital for a checkup.
July 30, 2025 · Northumberland, Pennsylvania
Heat Heat
Well-above average temperatures, coupled with humid conditions, allowed for heat index values to range between 100 and 105 degrees during the afternoon hours of July 30, 2025 across Northumberland County. Northumberland County Airport (KN79) reported multiple hours of heat index …
July 25, 2025 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm, producing wind gusts estimated near 60 mph, knocked a tree down onto Clark Road near Snydertown.
July 25, 2025 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm, producing wind gusts estimated near 60 mph, knocked a tree down onto South Main Street in Herndon.
June 26, 2025 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A line of severe thunderstorms producing wind gusts estimated at 60 mph knocked a tree down along the 6500 block of PA-147 which blocked a lane of traffic.
June 23, 2025 · Northumberland, Pennsylvania
Excessive Heat Excessive Heat
Well-above average temperatures, coupled with humid conditions, allowed for multiple days of heat index values over 100 degrees beginning during the afternoon hours of June 22nd and continuing through the late evening hours of June 25, 2025 across Northumberland County. Heat inde…
June 19, 2025 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A line of severe thunderstorms producing wind gusts estimated at 60 mph knocked multiple trees down across West Chilisquaque Township.
June 19, 2025 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm, producing wind gusts estimated near 70 mph, knocked down and uprooted multiple trees in Milton. Shingles were also blown off on some residences in Milton.
May 1, 2025 · Northumberland, Pennsylvania
Drought Drought
Severe (D2) drought continued for much of Northumberland County until the U.S. Drought Monitor update on May 13, 2025, when all remaining D2 conditions were removed.
April 29, 2025 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A 68 mph wind gust was measured on the Route 147 bridge near Sunbury as a line of severe thunderstorms moved through on April 29, 2025.
April 29, 2025 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A line of severe thunderstorms producing wind gusts estimated at 70 mph knocked down trees and wires in Sunbury. The wind caused a building to collapse on Julia Street.
April 1, 2025 · Northumberland, Pennsylvania
Drought Drought
Continued dry conditions allowed for D2 (severe) drought conditions to continue across southeastern Northumberland County throughout all of April 2025.
March 1, 2025 · Northumberland, Pennsylvania
Drought Drought
Continued dry conditions allowed for D2 (severe) drought conditions to continue across southeastern Northumberland County throughout all of March 2025. Mandatory water conservation measures were continued for communities served by the Roaring Creek Water plant throughout all of M…
February 20, 2025 · Northumberland, Pennsylvania
Winter Weather Winter Weather
Light snow showers impacted Northumberland County beginning during the evening of February 20, 2025 and into the early morning hours of February 21. While snow accumulation on roadways was minor, a tractor trailer travelling on State Route 54 in Coal Township rolled over just pri…
February 1, 2025 · Northumberland, Pennsylvania
Drought Drought
Continued dry conditions allowed for D2 (severe) drought conditions to continue across southeastern Northumberland County throughout all of February 2025.
January 21, 2025 · Northumberland, Pennsylvania
Cold/Wind Chill Cold/Wind Chill
An extended period of well-below average temperatures across Northumberland County allowed for wind chills across localized cold areas to range between -10 to -15 degrees during the early morning hours on January 21, 2025. Temperatures did warm throughout the day; however, cold w…
January 1, 2025 · Northumberland, Pennsylvania
Drought Drought
Continued dry conditions allowed for D2 (severe) drought conditions to continue across southeastern Northumberland County throughout all of January 2025.
December 1, 2024 · Northumberland, Pennsylvania
Drought Drought
Continued dry conditions allowed for D2 (severe) drought conditions to continue across southeastern Northumberland County throughout all of December 2024.
November 5, 2024 · Northumberland, Pennsylvania
Drought Drought
D2 (severe) drought conditions began across southeastern Northumberland County in early November 2024 and continued through the end of November 2024.
September 21, 2024 · Northumberland, Pennsylvania
Flood Flood
Heavy rainfall led to 2 to 3 feet of standing water on a roadway, with vehicles stranded in Northumberland borough.
July 10, 2024 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated near 60 mph knocked down a tree onto a residence in Milton along with multiple trees and power lines down blocking roadways in Milton.
June 30, 2024 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm with winds estimated at 60 mph knocked down multiple trees into wires along Upper Road west of Gowen City.
June 29, 2024 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated at 60 mph uprooted multiple trees in the borough of Mount Carmel.
June 29, 2024 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated at 60 mph knocked down multiple trees which blocked both lanes of traffic along Route 147 approximately 1 mile south of Hummels Wharf.
June 29, 2024 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated at 60 mph knocked down multiple trees which blocked the northbound lanes of Route 147 approximately 1 mile northeast of Herndon.
June 29, 2024 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated at 60 mph knocked down multiple large tree branches which damaged multiple mail boxes along Sunbury Street in the town of Dalmatia.
June 22, 2024 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing wind gusts estimated at 60 mph knocked a tree down onto Susquehanna Trail 2 miles west of Turbotville.
June 22, 2024 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A strong thunderstorm producing wind gusts estimated at 55 mph knocked a tree and pole down 3 miles west-northwest of Elysburg. A vehicle crashed into the downed pole.
May 23, 2024 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated near 60 mph knocked down a tree onto wires at the intersection of State Route 405 and 14th Street near Kapp Heights and Northumberland.
May 23, 2024 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated near 60 mph knocked down multiple power poles onto and along US Route 11 west of Danville.
April 14, 2024 · Northumberland, Pennsylvania
Hail Hail
A thunderstorm produced penny-sized hail in Sunbury.
April 14, 2024 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm with winds estimated at 60 mph knocked down multiple trees across roads in Milton.
February 17, 2024 · Northumberland, Pennsylvania
Winter Weather Winter Weather
SNOW SQUALL. A PennDOT RWIS station on Route 54 on Natalie Mountain near Kulpmont observed a sharp drop in visibility to around 1/4 mile in a snow squall.
February 13, 2024 · Northumberland, Pennsylvania
Heavy Snow Heavy Snow
A winter storm moving into Northumberland County on the late evening hours of February 12 and into the morning hours of February 13, 2024 brought a brief period of initial rain before producing 6 to 8 inches of snowfall.
January 14, 2024 · Northumberland, Pennsylvania
Winter Weather Winter Weather
SNOW SQUALL. Drops in visibility and heavy snowfall observed on the RWIS data network and webcams near Natalie.
September 7, 2023 · Northumberland, Pennsylvania
Hail Hail
A thunderstorm produced penny-sized hail west of Pillow.
September 7, 2023 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated near 60 mph knocked down large tree limbs onto State Route 54 northwest of Elysburg.
August 7, 2023 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto wires north of Elysburg.
July 24, 2023 · Northumberland, Pennsylvania
Hail Hail
A severe thunderstorm produced quarter sized hail southwest of McEwensville.
July 9, 2023 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A garage roof blew off and struck a propane tank along Plum Creek Road to the east of Sunbury.
July 9, 2023 · Northumberland, Pennsylvania
Flash Flood Flash Flood
Heavy rainfall estimated around 3 inches led to the closure of Brush Valley Road between Schock and Tressler roads in Rockefeller Township due to flash flooding.
July 9, 2023 · Northumberland, Pennsylvania
Flash Flood Flash Flood
Heavy rainfall estimated around 3 inches led to the closure of Route 61 between Highland Avenue in Sunbury and Green Street in Upper Augusta Township due to flash flooding.
July 9, 2023 · Northumberland, Pennsylvania
Flash Flood Flash Flood
Heavy rainfall estimated around 3 inches caused flash flooding east of Sunbury, with emergency responders conducting a water rescue on Plum Creek Road.
June 26, 2023 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires between Trevorton and Shamokin.
December 22, 2022 · Northumberland, Pennsylvania
Winter Weather Winter Weather
A period of moderate snow produced 3 to 5 inches of snow across Northumberland County during the morning and early afternoon of December 22, 2022. I-80 westbound was closed at Exit 215 in Turbot Township for nearly 3 hours due to a jack knifed tractor trailer and the resultant di…
December 15, 2022 · Northumberland, Pennsylvania
Winter Storm Winter Storm
A winter storm produced around an inch snow, an inch of sleet, and 0.10 to 0.20 of freezing rain across Northumberland County on December 15, 2022. As a result, I-80 eastbound was closed for about an hour and a half at Exit 212A due to a secondary crash involving a PennDOT vehicl…
November 18, 2022 · Northumberland, Pennsylvania
Winter Weather Winter Weather
SNOW SQUALL. A broken line of snow squalls accompanied by gusty winds produced brief whiteout conditions as it crossed Northumberland County during the early evening of November 18, 2022.
May 22, 2022 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated near 60 mph knocked down trees in Sunbury and a metal roof was partially torn off of a building.
May 22, 2022 · Northumberland, Pennsylvania
Thunderstorm Wind Thunderstorm Wind
A severe thunderstorm producing winds estimated near 60 mph knocked down several trees in the Watsontown area.

Events by year

YearEventsTornadoes
2025160
2024180
202390
202290
2021150
2020130
2019220
2018120
2017111
201660
2015172
201450
2013120
201260
2011261
201080
200970
200850
2007170
2006220
2005210
2004150
2003100
200270
200181
2000140
1999210
1998122
199771
1996150
199570
199420
199311
199210
199180
199020
198960
198840
198730
198511
198351
198210
197811
197551
197310
196910
196810
196710
196610
196320
195311