Williamsport Average Weather by Day

Data and chart of the the average high and low temperature for every day of the year in Williamsport, Pennsylvania, based on NOAA data.
Also see:
What's the hottest day of the year in Williamsport?
On average, July 21 is the hottest day of the year Williamsport, Pennsylvania. From 1991–2020, the average high temperature on July 21 was 85.4 °F and the average low was 63.1 °F.
What's the coldest day of the year in Williamsport?
On average, January 29 is the coldest day of the year Williamsport, Pennsylvania. From 1991–2020, the average high temperature on January 29 was 35.4 °F, and the average low was 19.1 °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 37.5 22.7
January 2 37.4 22.6
January 3 37.2 22.5
January 4 37.1 22.4
January 5 36.9 22.2
January 6 36.7 21.9
January 7 36.3 21.5
January 8 36.0 21.1
January 9 35.9 20.9
January 10 35.9 20.8
January 11 35.8 20.8
January 12 35.6 20.6
January 13 35.6 20.5
January 14 35.5 20.3
January 15 35.5 20.2
January 16 35.4 20.0
January 17 35.3 19.9
January 18 35.4 19.8
January 19 35.3 19.7
January 20 35.3 19.6
January 21 35.4 19.6
January 22 35.5 19.6
January 23 35.5 19.5
January 24 35.6 19.5
January 25 35.7 19.5
January 26 35.6 19.4
January 27 35.6 19.2
January 28 35.5 19.1
January 29 35.4 19.1
January 30 35.4 19.1
January 31 35.5 19.2
February 1 35.7 19.2
February 2 35.8 19.2
February 3 36.0 19.2
February 4 36.1 19.4
February 5 36.5 19.6
February 6 36.9 19.9
February 7 37.2 20.1
February 8 37.4 20.3
February 9 37.7 20.4
February 10 37.9 20.6
February 11 38.2 20.8
February 12 38.3 20.9
February 13 38.5 21.1
February 14 38.7 21.3
February 15 39.1 21.6
February 16 39.3 21.8
February 17 39.5 22.0
February 18 39.6 22.2
February 19 39.8 22.3
February 20 40.0 22.4
February 21 40.4 22.6
February 22 40.7 22.9
February 23 41.1 23.1
February 24 41.4 23.4
February 25 41.8 23.6
February 26 42.1 23.9
February 27 42.5 24.2
February 28 43.0 24.5
March 1 43.4 24.8
March 2 43.8 25.1
March 3 44.2 25.3
March 4 44.5 25.6
March 5 44.8 25.9
March 6 45.1 26.2
March 7 45.3 26.5
March 8 45.5 26.7
March 9 45.7 26.8
March 10 46.0 27.0
March 11 46.4 27.2
March 12 46.7 27.5
March 13 47.2 27.7
March 14 47.7 28.2
March 15 48.1 28.6
March 16 48.5 28.9
March 17 48.9 29.2
March 18 49.3 29.5
March 19 49.9 29.9
March 20 50.5 30.3
March 21 50.9 30.7
March 22 51.1 31.0
March 23 51.5 31.2
March 24 51.8 31.5
March 25 52.3 31.8
March 26 52.6 32.2
March 27 53.0 32.5
March 28 53.5 32.9
March 29 53.9 33.2
March 30 54.3 33.5
March 31 54.8 33.9
April 1 55.3 34.4
April 2 56.0 34.8
April 3 56.4 35.1
April 4 56.9 35.3
April 5 57.6 35.7
April 6 58.2 36.2
April 7 58.7 36.6
April 8 59.0 37.0
April 9 59.4 37.3
April 10 59.9 37.6
April 11 60.3 37.9
April 12 60.7 38.1
April 13 61.1 38.3
April 14 61.4 38.6
April 15 61.7 38.8
April 16 62.1 39.1
April 17 62.6 39.4
April 18 63.0 39.8
April 19 63.5 40.1
April 20 64.0 40.6
April 21 64.3 41.0
April 22 64.7 41.3
April 23 65.1 41.6
April 24 65.5 41.9
April 25 65.8 42.4
April 26 66.3 42.7
April 27 66.7 43.0
April 28 67.0 43.3
April 29 67.2 43.6
April 30 67.4 43.8
May 1 67.7 44.1
May 2 68.0 44.4
May 3 68.2 44.7
May 4 68.4 45.0
May 5 68.6 45.2
May 6 68.9 45.4
May 7 69.3 45.6
May 8 69.6 46.0
May 9 70.0 46.4
May 10 70.4 46.7
May 11 70.7 47.1
May 12 71.1 47.5
May 13 71.5 48.0
May 14 71.8 48.4
May 15 72.2 48.7
May 16 72.5 49.0
May 17 72.8 49.3
May 18 73.1 49.6
May 19 73.4 49.9
May 20 73.5 50.2
May 21 73.8 50.5
May 22 74.0 50.8
May 23 74.2 51.1
May 24 74.5 51.3
May 25 74.8 51.6
May 26 75.1 51.8
May 27 75.5 52.2
May 28 76.0 52.7
May 29 76.3 53.1
May 30 76.6 53.5
May 31 76.9 53.8
June 1 77.2 54.1
June 2 77.6 54.4
June 3 77.8 54.7
June 4 78.1 55.2
June 5 78.5 55.6
June 6 78.8 55.9
June 7 79.0 56.3
June 8 79.2 56.6
June 9 79.4 56.8
June 10 79.7 57.0
June 11 79.9 57.2
June 12 80.2 57.5
June 13 80.3 57.7
June 14 80.5 58.0
June 15 80.7 58.2
June 16 80.8 58.4
June 17 81.1 58.6
June 18 81.4 58.9
June 19 81.8 59.1
June 20 82.0 59.5
June 21 82.4 59.8
June 22 82.6 60.0
June 23 82.8 60.3
June 24 82.9 60.5
June 25 83.0 60.6
June 26 83.1 60.7
June 27 83.3 60.7
June 28 83.4 60.7
June 29 83.6 60.9
June 30 83.7 61.1
July 1 83.9 61.3
July 2 84.1 61.4
July 3 84.4 61.5
July 4 84.6 61.7
July 5 84.7 61.9
July 6 84.8 62.0
July 7 84.9 62.1
July 8 85.0 62.3
July 9 85.1 62.5
July 10 85.0 62.5
July 11 85.0 62.6
July 12 85.0 62.6
July 13 85.1 62.6
July 14 85.1 62.7
July 15 85.1 62.7
July 16 85.1 62.8
July 17 85.2 62.9
July 18 85.3 63.0
July 19 85.4 63.0
July 20 85.4 63.0
July 21 85.4 63.1
July 22 85.3 63.0
July 23 85.2 62.9
July 24 85.1 62.8
July 25 85.1 62.9
July 26 85.1 62.9
July 27 85.0 63.0
July 28 85.0 63.0
July 29 84.9 62.9
July 30 84.8 62.9
July 31 84.7 62.9
August 1 84.5 62.8
August 2 84.4 62.7
August 3 84.3 62.7
August 4 84.2 62.6
August 5 84.0 62.5
August 6 83.8 62.3
August 7 83.7 62.2
August 8 83.7 62.1
August 9 83.5 61.9
August 10 83.5 61.8
August 11 83.4 61.7
August 12 83.3 61.6
August 13 83.3 61.6
August 14 83.2 61.6
August 15 83.0 61.4
August 16 82.9 61.3
August 17 82.7 61.1
August 18 82.4 60.9
August 19 82.2 60.7
August 20 82.1 60.6
August 21 82.1 60.5
August 22 82.0 60.4
August 23 81.8 60.3
August 24 81.7 60.1
August 25 81.5 60.0
August 26 81.4 59.8
August 27 81.2 59.7
August 28 80.9 59.4
August 29 80.7 59.1
August 30 80.5 58.9
August 31 80.2 58.6
September 1 79.9 58.4
September 2 79.6 58.2
September 3 79.4 57.9
September 4 79.2 57.6
September 5 79.0 57.3
September 6 78.7 57.0
September 7 78.5 56.9
September 8 78.2 56.6
September 9 77.9 56.3
September 10 77.6 55.9
September 11 77.2 55.5
September 12 76.8 55.2
September 13 76.6 54.9
September 14 76.2 54.7
September 15 75.7 54.4
September 16 75.3 54.0
September 17 74.9 53.6
September 18 74.5 53.2
September 19 74.1 52.8
September 20 73.7 52.5
September 21 73.3 52.2
September 22 72.8 51.7
September 23 72.4 51.3
September 24 72.1 50.9
September 25 71.8 50.6
September 26 71.5 50.3
September 27 71.2 50.0
September 28 70.7 49.6
September 29 70.3 49.1
September 30 69.9 48.7
October 1 69.5 48.3
October 2 69.1 47.9
October 3 68.6 47.5
October 4 68.3 47.1
October 5 67.8 46.7
October 6 67.4 46.3
October 7 66.9 45.9
October 8 66.5 45.6
October 9 66.0 45.3
October 10 65.6 45.0
October 11 65.3 44.5
October 12 64.8 44.1
October 13 64.3 43.8
October 14 64.0 43.4
October 15 63.6 43.1
October 16 63.3 42.8
October 17 62.9 42.4
October 18 62.5 42.1
October 19 62.2 41.7
October 20 61.8 41.3
October 21 61.4 40.9
October 22 60.9 40.6
October 23 60.5 40.3
October 24 60.0 39.8
October 25 59.5 39.4
October 26 59.0 39.0
October 27 58.6 38.7
October 28 58.3 38.4
October 29 57.8 38.0
October 30 57.4 37.6
October 31 56.9 37.4
November 1 56.6 37.1
November 2 56.2 36.9
November 3 55.8 36.6
November 4 55.2 36.3
November 5 54.8 36.0
November 6 54.3 35.7
November 7 53.9 35.4
November 8 53.5 35.0
November 9 53.1 34.7
November 10 52.7 34.4
November 11 52.3 34.0
November 12 51.9 33.7
November 13 51.6 33.5
November 14 51.3 33.3
November 15 50.9 33.2
November 16 50.6 32.9
November 17 50.2 32.7
November 18 49.8 32.5
November 19 49.4 32.3
November 20 49.1 32.1
November 21 48.6 31.8
November 22 48.2 31.6
November 23 47.8 31.4
November 24 47.3 31.1
November 25 46.8 30.8
November 26 46.4 30.5
November 27 46.0 30.3
November 28 45.7 30.0
November 29 45.3 29.8
November 30 44.9 29.5
December 1 44.6 29.4
December 2 44.2 29.1
December 3 44.0 29.0
December 4 43.6 28.7
December 5 43.3 28.4
December 6 42.9 28.1
December 7 42.6 27.8
December 8 42.3 27.7
December 9 42.1 27.5
December 10 41.9 27.4
December 11 41.6 27.1
December 12 41.2 26.8
December 13 40.8 26.5
December 14 40.5 26.2
December 15 40.1 25.9
December 16 39.8 25.6
December 17 39.6 25.4
December 18 39.3 25.2
December 19 39.1 25.0
December 20 38.8 24.7
December 21 38.7 24.5
December 22 38.6 24.4
December 23 38.5 24.3
December 24 38.4 24.1
December 25 38.2 23.9
December 26 38.1 23.8
December 27 37.9 23.6
December 28 37.8 23.4
December 29 37.8 23.4
December 30 37.7 23.2
December 31 37.6 23.0
Weather Station Details
Years Station Coordinates
1948–2024 Williamsport location
1895–1947 Williamsport location
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