Philadelphia Average Weather by Day

Data and chart of the the average high and low temperature for every day of the year in Philadelphia, Pennsylvania, based on NOAA data.
Also see:
What's the hottest day of the year in Philadelphia?
On average, July 21 is the hottest day of the year Philadelphia, Pennsylvania. From 1991–2020, the average high temperature on July 21 was 88.0 °F and the average low was 70.7 °F.
What's the coldest day of the year in Philadelphia?
On average, January 30 is the coldest day of the year Philadelphia, Pennsylvania. From 1991–2020, the average high temperature on January 30 was 41.0 °F, and the average low was 25.9 °F.
Average Temperature by Day
  • Average temperatures from 1991–2020. Daily averages are a mean of the period from 14 days before to 14 days after, inclusive.
Day Average (°F)
High Low
January 1 43.5 29.3
January 2 43.4 29.1
January 3 43.3 29.0
January 4 43.2 28.9
January 5 42.9 28.7
January 6 42.7 28.5
January 7 42.3 28.1
January 8 41.9 27.8
January 9 41.8 27.7
January 10 41.9 27.6
January 11 41.7 27.5
January 12 41.5 27.3
January 13 41.4 27.1
January 14 41.3 27.0
January 15 41.3 26.9
January 16 41.2 26.8
January 17 41.1 26.7
January 18 41.2 26.6
January 19 41.1 26.5
January 20 41.2 26.4
January 21 41.2 26.4
January 22 41.2 26.4
January 23 41.3 26.4
January 24 41.4 26.4
January 25 41.4 26.4
January 26 41.3 26.3
January 27 41.2 26.1
January 28 41.1 26.0
January 29 41.1 25.9
January 30 41.0 25.9
January 31 41.1 25.9
February 1 41.2 26.0
February 2 41.4 26.1
February 3 41.5 26.1
February 4 41.7 26.2
February 5 42.1 26.4
February 6 42.4 26.7
February 7 42.7 26.9
February 8 42.9 27.0
February 9 43.1 27.2
February 10 43.4 27.5
February 11 43.6 27.6
February 12 43.7 27.8
February 13 43.9 28.0
February 14 44.1 28.2
February 15 44.4 28.4
February 16 44.6 28.6
February 17 44.8 28.8
February 18 44.8 28.9
February 19 45.0 28.9
February 20 45.2 29.1
February 21 45.5 29.2
February 22 45.8 29.5
February 23 46.2 29.7
February 24 46.6 30.0
February 25 46.9 30.2
February 26 47.2 30.4
February 27 47.6 30.7
February 28 48.1 31.0
March 1 48.4 31.3
March 2 48.7 31.6
March 3 49.0 31.8
March 4 49.3 32.1
March 5 49.6 32.3
March 6 49.8 32.6
March 7 50.0 32.8
March 8 50.1 33.0
March 9 50.2 33.2
March 10 50.5 33.3
March 11 50.8 33.5
March 12 51.1 33.8
March 13 51.6 34.0
March 14 51.9 34.4
March 15 52.3 34.8
March 16 52.7 35.1
March 17 53.0 35.3
March 18 53.4 35.7
March 19 53.9 36.0
March 20 54.4 36.4
March 21 54.8 36.8
March 22 55.0 37.0
March 23 55.3 37.3
March 24 55.6 37.6
March 25 55.9 37.9
March 26 56.2 38.2
March 27 56.6 38.5
March 28 57.0 38.9
March 29 57.4 39.2
March 30 57.7 39.5
March 31 58.2 39.9
April 1 58.6 40.3
April 2 59.1 40.6
April 3 59.6 41.0
April 4 60.0 41.3
April 5 60.6 41.6
April 6 61.2 42.1
April 7 61.7 42.5
April 8 62.1 42.9
April 9 62.4 43.2
April 10 62.8 43.5
April 11 63.2 43.8
April 12 63.6 44.1
April 13 63.8 44.3
April 14 64.1 44.6
April 15 64.5 44.9
April 16 64.8 45.1
April 17 65.2 45.5
April 18 65.7 45.9
April 19 66.0 46.2
April 20 66.5 46.6
April 21 66.8 47.0
April 22 67.1 47.3
April 23 67.4 47.6
April 24 67.7 48.0
April 25 68.0 48.3
April 26 68.4 48.7
April 27 68.7 49.0
April 28 69.0 49.3
April 29 69.2 49.5
April 30 69.4 49.8
May 1 69.7 50.1
May 2 70.0 50.4
May 3 70.3 50.8
May 4 70.4 51.0
May 5 70.5 51.2
May 6 70.8 51.4
May 7 71.0 51.6
May 8 71.3 51.9
May 9 71.7 52.3
May 10 72.0 52.7
May 11 72.4 53.0
May 12 72.8 53.4
May 13 73.1 53.7
May 14 73.5 54.1
May 15 73.8 54.5
May 16 74.1 54.9
May 17 74.4 55.2
May 18 74.8 55.5
May 19 75.2 55.8
May 20 75.4 56.1
May 21 75.6 56.4
May 22 75.8 56.7
May 23 76.1 57.0
May 24 76.4 57.3
May 25 76.7 57.6
May 26 77.1 57.9
May 27 77.4 58.3
May 28 77.9 58.7
May 29 78.3 59.2
May 30 78.4 59.5
May 31 78.7 59.8
June 1 79.0 60.1
June 2 79.4 60.4
June 3 79.8 60.8
June 4 80.1 61.2
June 5 80.5 61.6
June 6 80.9 62.0
June 7 81.1 62.3
June 8 81.3 62.6
June 9 81.5 62.9
June 10 81.8 63.1
June 11 82.1 63.4
June 12 82.4 63.7
June 13 82.6 64.1
June 14 82.8 64.3
June 15 83.0 64.6
June 16 83.2 64.8
June 17 83.4 65.0
June 18 83.7 65.3
June 19 84.1 65.6
June 20 84.4 65.9
June 21 84.8 66.3
June 22 85.0 66.6
June 23 85.3 66.9
June 24 85.3 67.1
June 25 85.5 67.3
June 26 85.7 67.5
June 27 85.8 67.7
June 28 86.0 67.8
June 29 86.2 68.0
June 30 86.3 68.2
July 1 86.5 68.4
July 2 86.7 68.6
July 3 87.0 68.8
July 4 87.2 69.1
July 5 87.3 69.3
July 6 87.5 69.4
July 7 87.6 69.6
July 8 87.7 69.8
July 9 87.8 69.9
July 10 87.7 70.0
July 11 87.7 70.0
July 12 87.7 70.1
July 13 87.8 70.2
July 14 87.8 70.3
July 15 87.8 70.4
July 16 87.8 70.4
July 17 87.9 70.5
July 18 87.9 70.6
July 19 88.0 70.6
July 20 88.0 70.6
July 21 88.0 70.7
July 22 87.9 70.7
July 23 87.8 70.6
July 24 87.7 70.5
July 25 87.7 70.5
July 26 87.7 70.5
July 27 87.7 70.5
July 28 87.6 70.5
July 29 87.6 70.5
July 30 87.5 70.5
July 31 87.3 70.4
August 1 87.1 70.3
August 2 87.0 70.2
August 3 86.9 70.2
August 4 86.8 70.1
August 5 86.7 70.0
August 6 86.6 69.9
August 7 86.5 69.8
August 8 86.4 69.6
August 9 86.3 69.5
August 10 86.2 69.4
August 11 86.1 69.3
August 12 86.0 69.1
August 13 86.0 69.0
August 14 85.9 69.0
August 15 85.8 68.8
August 16 85.7 68.7
August 17 85.5 68.6
August 18 85.3 68.4
August 19 85.1 68.2
August 20 85.0 68.1
August 21 85.0 68.1
August 22 84.9 68.0
August 23 84.7 67.8
August 24 84.6 67.6
August 25 84.4 67.5
August 26 84.3 67.3
August 27 84.1 67.2
August 28 83.9 66.9
August 29 83.7 66.7
August 30 83.6 66.4
August 31 83.4 66.2
September 1 83.0 65.9
September 2 82.8 65.7
September 3 82.6 65.4
September 4 82.3 65.1
September 5 82.1 64.8
September 6 81.8 64.5
September 7 81.6 64.3
September 8 81.4 64.1
September 9 81.1 63.8
September 10 80.8 63.5
September 11 80.4 63.2
September 12 80.1 62.8
September 13 79.8 62.6
September 14 79.5 62.4
September 15 79.1 62.0
September 16 78.7 61.6
September 17 78.3 61.2
September 18 78.0 60.7
September 19 77.6 60.3
September 20 77.3 60.0
September 21 76.9 59.7
September 22 76.5 59.3
September 23 76.1 58.9
September 24 75.7 58.5
September 25 75.4 58.1
September 26 75.1 57.8
September 27 74.8 57.5
September 28 74.3 57.1
September 29 73.9 56.7
September 30 73.5 56.3
October 1 73.2 56.0
October 2 72.8 55.6
October 3 72.4 55.2
October 4 72.0 54.8
October 5 71.6 54.5
October 6 71.2 54.1
October 7 70.8 53.7
October 8 70.4 53.3
October 9 70.0 52.9
October 10 69.7 52.5
October 11 69.3 52.0
October 12 68.7 51.6
October 13 68.3 51.2
October 14 67.9 50.8
October 15 67.5 50.4
October 16 67.1 50.1
October 17 66.8 49.7
October 18 66.4 49.4
October 19 66.0 49.0
October 20 65.7 48.6
October 21 65.2 48.2
October 22 64.8 47.8
October 23 64.4 47.5
October 24 63.9 47.0
October 25 63.5 46.6
October 26 63.1 46.1
October 27 62.8 45.8
October 28 62.4 45.4
October 29 62.0 45.0
October 30 61.5 44.6
October 31 61.1 44.2
November 1 60.9 43.9
November 2 60.5 43.7
November 3 60.1 43.3
November 4 59.7 42.9
November 5 59.2 42.6
November 6 58.9 42.3
November 7 58.5 42.0
November 8 58.1 41.7
November 9 57.7 41.3
November 10 57.4 41.0
November 11 57.0 40.6
November 12 56.8 40.3
November 13 56.6 40.1
November 14 56.4 39.9
November 15 56.0 39.7
November 16 55.7 39.4
November 17 55.4 39.1
November 18 55.0 38.9
November 19 54.8 38.6
November 20 54.4 38.3
November 21 54.1 38.1
November 22 53.7 37.8
November 23 53.3 37.5
November 24 52.9 37.2
November 25 52.4 36.9
November 26 52.0 36.6
November 27 51.6 36.4
November 28 51.4 36.2
November 29 51.0 35.9
November 30 50.6 35.7
December 1 50.3 35.4
December 2 50.0 35.2
December 3 49.8 35.1
December 4 49.5 34.8
December 5 49.1 34.5
December 6 48.7 34.2
December 7 48.4 33.9
December 8 48.2 33.7
December 9 48.1 33.5
December 10 47.9 33.4
December 11 47.5 33.1
December 12 47.1 32.8
December 13 46.8 32.6
December 14 46.5 32.3
December 15 46.2 32.1
December 16 45.8 31.8
December 17 45.6 31.6
December 18 45.4 31.4
December 19 45.1 31.2
December 20 44.9 31.0
December 21 44.8 30.8
December 22 44.7 30.7
December 23 44.6 30.6
December 24 44.4 30.4
December 25 44.2 30.2
December 26 44.1 30.1
December 27 43.9 29.9
December 28 43.8 29.8
December 29 43.8 29.7
December 30 43.8 29.6
December 31 43.7 29.5
Weather Station Details
Years Station Coordinates
1941–2024 Philadelphia International Airport location
1916–1940 Philadelphia Naval Yard location
1894–1915 Drexel University location
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