Weather By Day

December Weather In Philadelphia  
December Philadelphia Weather
Record High: 73°F
Normal High: 44°F
Normal Low: 31°F
Record Low: 1°F
Avg Monthly Rain: 3.31"
Rec 1 Day Rain: 2.3"
Avg Monthly Snow: 3.4"
Rec 1 Day Snow: 12.4"

Philadelphia Weather In December

The highest recorded temperature for Philadelphia for the past 69 years in December was 73 degrees Fahrenheit, measured on December 4, 1998, and the mean high is 44. The lowest documented temperature for Philadelphia for the past 69 years in December was 1 registered on December 25, 1983, and the mean daily low in the month is 31.

US National Weather Service Philadelphia December Weather data records that on December 25, 1983, the high temperature did not exceed 10 degrees Fahrenheit, the lowest high measured in Philadelphia in the past 69 years. Weather Service records also indicate that on December 23, 1990, the low temperature for the day was not measured below 58 degrees, the highest low measured in Philadelphia in the last 69 years.

According to the National Weather Service, the high temperature in Philadelphia in December on the first day of the month averages 48 degrees and the high on the last day of the month averages 42 degrees. The daily low temperature in Philadelphia on December First averages 32 degrees Fahrenheit and the low on the last day of December averages 26 degrees.

Philadelphia receives an average of 3.31 inches of precipitation during December. December Philadelphia Weather records indicate that on December 30, 1948 Philadelphia received 2.3 inches of precipitation, the highest amount of rain recorded in a single day in December. Philadelphia receives an average of 3.4 inches of snow in December.On December 24, 1966 Philadelphia received 12.4 inches of rain, the greatest snowfall measured in a single day in December.