All-time Record Hottest and Coldest Temperatures Ever Recorded in Philadelphia, Pennsylvania

Weather temperatures have been officially kept in Philadelphia, Pennsylvania since 1873. These are the all-time record hottest and coldest temperatures ever recorded in Philadelphia since 1873. 

Located along the Delaware River in eastern Pennsylvania, the city of Philadelphia tends to have a milder climate than the extremes that can be found in the Keystone State. This is born out by the differences between the all-time hottest and coldest temperatures ever recorded in Philadelphia, compared to the all-time hottest and coldest temperatures recorded in the state of Pennsylvania.

The difference between the all-time hottest and coldest temperatures ever recorded in Philadelphia is 117 degrees. The difference between the all-time hottest and coldest temperatures ever recorded in the state of Pennsylvania is 153 degrees; a big difference of 36 degrees.

Record Hottest and Coldest Temperatures Ever Recorded in Philadelphia, Pennsylvania

All-time Record Hottest Temperature Ever Recorded in Philadelphia is 106 Degrees

The hottest temperature ever officially recorded in the city of Philadelphia is 106 degrees, which occurred on August 7, 1918.

Days when the temperature reaches or exceeds 100 degrees are not common in Philadelphia. They do occur occasionally when a real hot spell hits the area, but the city has many summers without any 100 degree temperature days.

I live in New Jersey, about 60 miles northeast of Philadelphia. We get very similar weather to the City of Brotherly Love, and though we almost always have 90 degree days in summer, it's a relatively rare day when the temperature hits 100 degrees in our area.

As a bit of weather trivia some might find hard to believe, the record hottest temperature in Philadelphia of 106 degrees is exactly six degrees hotter than the all-time hottest temperature ever recorded in Miami, Florida. Philadelphia is roughly 1,200 miles north of Miami.

• Hottest Temperature Ever Recorded in Pennsylvania is 111 Degrees 

The all-time record hottest temperature ever recorded in the state of Pennsylvania is 111 degrees, which occurred on July 10, 1936, in Phoenixville. The summer of 1936 was a very hot one in the United States, as 15 states set their all-time highest temperature record that year.

Phoenixville is located only some 30 miles northwest of Philadelphia. It was 104 degrees on July 10, 1936, in Philadelphia on the date when Pennsylvania's all-time hottest weather temperature record was set.

The difference between the all-time hottest temperature ever recorded in Philadelphia (106) and the all-time hottest temperature ever recorded in the state of Pennsylvania (111) is five degrees. Not a huge difference, but still a significant statistical difference.

All-time Record Coldest Temperature Ever Recorded in Philadelphia is -11 Degrees

The coldest temperature ever officially recorded in the city of Philadelphia is -11 degrees, which occurred on February 9, 1934. Below zero temperatures are not common in Philadelphia, as the city has only had about two dozen days since 1873 when the temperature dropped below zero.

Again, I live in the area and it's pretty rare to have the temperature drop down below zero where we live. We get plenty of below freezing days, Philadelphia averages 93 days a year when the temperature drops to 32 degrees or below.

• Coldest Temperature Ever Recorded in Pennsylvania is -42 Degrees 

The coldest temperature ever officially recorded in the state of Pennsylvania is -42 degrees, which occurred on January 5, 1904, in Smethport. The borough of Smethport is located in northern Pennsylvania near the New York border, over 250 miles northwest of Philadelphia.

The difference between the all-time coldest temperature ever recorded in Philadelphia (-11) and the all-time coldest temperature ever recorded in the state of Pennsylvania (-42) is 31 degrees. A huge statistical difference.

Overall, the city of Philadelphia has a much milder climate than the extremes that can be found in the state of Pennsylvania. Philadelphia can get almost as hot as most parts of the state, but it gets much colder in other parts of Pennsylvania than it does in the City of Brotherly Love.