Extreme Cold/Wind Chill in Pennsylvania
Every extreme cold/wind chill event the National Weather Service has filed in Pennsylvania, year by year, with the most significant episodes. Temperatures or wind chills at or below the local warning criteria, or cold that caused deaths.
The most significant on the map
The most significant extreme cold/wind chill episodes in Pennsylvania.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The record
- Events
- 561
- Deaths
- 6
- Injuries
- 0
- Damage
- $960,000
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Extreme Cold and Cold in Pennsylvania, January 22, 2014Strong northwest winds behind the departing strong low pressure system coupled with another arctic air mass dropped low temperatures on the morning of the 22nd around zero (well below zero in the Poconos) and produced wind chill factors as low as around 15 degrees below zero,…
- Extreme Cold and Cold in Pennsylvania, February 19 to 20, 2015The arrival of another arctic air mass brought some of the lowest wind chills and temperatures of the winter season to Pennsylvania 20th and 21st and was responsible for three cold related deaths.
- Extreme Cold and Cold in Pennsylvania, January 20 to 22, 2025An area of departing surface low-pressure coupled with an enhanced upper-level trough dipping down across the eastern United States allowed for an extended period of cold air across central Pennsylvania beginning January 20, 2025.
- Extreme Cold in Pennsylvania, February 5 to 6, 2007An arctic air mass that originated near the North Pole invaded eastern Pennsylvania.
- Extreme Cold in Pennsylvania, January 14, 2000One of the coldest air masses of the season worked its way into the Philadelphia region during the night of the 13th and morning of the 14th. The low temperature of 17 degrees at the Philadelphia International Airport was the lowest reading so far this winter.
- Extreme Cold and Cold in Pennsylvania, February 15, 2015The combination of strong to high winds and an approaching arctic air mass produced wind chill factors as low as around 25 degrees below zero in the Poconos and around 15 to 20 degrees below zero elsewhere in Eastern Pennsylvania during the morning of the 15th.
- Extreme Cold and Cold in Pennsylvania, February 15 to 16, 2015The near arrival of the center of the arctic air mass brought some of the lowest wind chills and temperatures of the winter season to Eastern Pennsylvania.
- Extreme Cold in Pennsylvania, April 29, 2012An area of strong high pressure was centered over the upper Ohio Valley on the morning of April 29th. Clear skies and calm winds allowed for very cold low temperatures.
- Extreme Cold in Pennsylvania, February 14 to 16, 2015An arctic airmass combined with gusty winds resulted in frigid temperatures and extremely dangerous wind chills across central Pennsylvania.
- Extreme Cold and Strong Wind in Pennsylvania, December 23 to 25, 2022An arctic airmass pushed into central Pennsylvania behind a bombing area of low pressure that moved from the eastern Great Lakes northward into eastern Canada.
- Extreme Cold in Pennsylvania, February 10 to 11, 2008Arctic air combined with gusty winds produced wind chill values of ten to twenty degrees below zero from the evening of the 10th through the early morning on the 11th.
- Extreme Cold in Pennsylvania, February 5 to 6, 2007Gusty west winds and low temperatures combined to produce very low wind chills across the region.
- Extreme Cold in Pennsylvania, February 5, 2007Gusty west winds and low temperatures combined to produce very low wind chills across the region.
- Extreme Cold in Pennsylvania, January 6 to 8, 2014The coldest air mass in nearly two decades brought extreme cold temperatures and dangerous wind chills to much of central Pennsylvania from January 6-8. Temperatures bottomed on the morning of the 7th with lows ranging from 0 to -20 F with wind chills between -25 to -50 F.
- Extreme Cold in Pennsylvania, January 15 to 17, 2009An unusually strong arctic air mass brought sub-freezing temperatures and extreme wind chills to much of central Pennsylvania. This was one of the coldest air masses to affect the region in years.
- Extreme Cold in Pennsylvania, December 21 to 22, 2008Blustery west winds combined with bitterly cold temperatures associated with an arctic airmass to produce frigid wind chills of fifteen to twenty degrees below zero across much of northern and western Pennsylvania.
- Extreme Cold in Pennsylvania, February 19 to 20, 2015An arctic airmass combined with gusty winds resulted in frigid sub-zero temperatures and extremely dangerous wind chills across portions of central Pennsylvania.
- Extreme Cold in Pennsylvania, January 5 to 7, 2014An arctic cold front crossed the Upper Ohio Valley on the 6th, bringing record low temperatures and extreme wind chills the morning of the 7th. It was the coldest January 7th on record in Pittsburgh with a low temperature of 9 below zero, and a high temperature of 4 above zero.
- Extreme Cold in Pennsylvania, February 24, 2015An arctic air mass moved across eastern Ohio, western Pennsylvania, northern West Virginia, and Garrett county Maryland on the 24th. Temperatures were well below zero with record lows across the region.
- Extreme Cold in Pennsylvania, February 19 to 20, 2015Bitter cold Arctic high pressure brought temperatures well below zero the morning of the 20th, with many low temperature records broken.
- Extreme Cold in Pennsylvania, January 30 to 31, 2019Extreme cold arctic air surged into the northeast region January 30th. 500mb heights were close to 5040 meters, 850mb temperatures ranged from -26 to -30 degrees Celsius, and 925mb temperatures were near -22 to -26 degrees Celsius.
- Extreme Cold in Pennsylvania, February 16, 2007Cold temperatures and brisk west winds combined to produce bitterly cold wind chills across north-central Pennsylvania.
- Extreme Cold in Pennsylvania, February 3 to 6, 2007Cold temperatures and brisk winds combined to produce bitterly cold wind chills across the region.
- Extreme Cold in Pennsylvania, March 6, 2007Strong northwest winds and cold temperatures combined to produce bitterly cold wind chills across central Pennsylvania.
- Extreme Cold in Pennsylvania, March 2 to 3, 2009Gusty northwest winds combined with unseasonably cold temperatures produced bitterly cold wind chills across the northern and western mountains of central Pennsylvania.
More
Extreme Cold/Wind Chill everywhereEvery kind of event in Pennsylvania
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.