Dayton Average Weather by Day

Data and chart of the the average high and low temperature for every day of the year in Dayton, Ohio, based on NOAA data.
Also see:
What's the hottest day of the year in Dayton?
On average, July 20 is the hottest day of the year Dayton, Ohio. From 1991–2020, the average high temperature on July 20 was 84.6 °F and the average low was 65.1 °F.
What's the coldest day of the year in Dayton?
On average, January 28 is the coldest day of the year Dayton, Ohio. From 1991–2020, the average high temperature on January 28 was 35.6 °F, and the average low was 19.9 °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 37.8 23.6
January 2 37.6 23.3
January 3 37.5 23.2
January 4 37.3 23.0
January 5 37.0 22.7
January 6 36.8 22.4
January 7 36.5 22.0
January 8 36.5 21.9
January 9 36.6 22.0
January 10 36.4 21.8
January 11 36.2 21.6
January 12 36.0 21.4
January 13 35.9 21.1
January 14 35.9 20.9
January 15 35.7 20.7
January 16 35.6 20.6
January 17 35.5 20.4
January 18 35.5 20.4
January 19 35.4 20.3
January 20 35.5 20.3
January 21 35.7 20.3
January 22 35.7 20.3
January 23 35.8 20.3
January 24 35.8 20.4
January 25 35.8 20.3
January 26 35.8 20.1
January 27 35.6 19.9
January 28 35.6 19.9
January 29 35.7 19.9
January 30 35.7 19.9
January 31 35.9 20.1
February 1 36.1 20.2
February 2 36.2 20.4
February 3 36.5 20.6
February 4 36.8 20.8
February 5 37.1 21.1
February 6 37.4 21.3
February 7 37.7 21.5
February 8 37.9 21.8
February 9 38.3 22.2
February 10 38.6 22.4
February 11 38.8 22.6
February 12 38.9 22.9
February 13 39.2 23.0
February 14 39.5 23.2
February 15 39.9 23.5
February 16 40.1 23.7
February 17 40.2 23.8
February 18 40.3 23.8
February 19 40.5 24.0
February 20 40.9 24.3
February 21 41.3 24.6
February 22 41.6 24.8
February 23 42.1 25.1
February 24 42.4 25.4
February 25 42.7 25.6
February 26 43.1 25.9
February 27 43.5 26.2
February 28 44.0 26.6
March 1 44.4 26.9
March 2 44.8 27.2
March 3 45.2 27.5
March 4 45.7 27.8
March 5 46.0 28.2
March 6 46.4 28.5
March 7 46.7 28.7
March 8 46.9 28.9
March 9 47.2 29.1
March 10 47.6 29.3
March 11 48.0 29.7
March 12 48.3 30.0
March 13 48.8 30.3
March 14 49.2 30.8
March 15 49.6 31.2
March 16 50.0 31.4
March 17 50.4 31.8
March 18 51.0 32.3
March 19 51.6 32.7
March 20 52.1 33.1
March 21 52.6 33.4
March 22 52.8 33.6
March 23 53.2 33.8
March 24 53.6 34.3
March 25 54.1 34.7
March 26 54.6 35.1
March 27 55.0 35.4
March 28 55.6 35.8
March 29 56.0 36.1
March 30 56.4 36.5
March 31 56.9 36.8
April 1 57.4 37.2
April 2 57.8 37.6
April 3 58.2 37.9
April 4 58.8 38.3
April 5 59.3 38.8
April 6 59.9 39.2
April 7 60.2 39.5
April 8 60.5 39.8
April 9 60.8 40.0
April 10 61.3 40.3
April 11 61.6 40.7
April 12 62.0 40.9
April 13 62.3 41.1
April 14 62.5 41.3
April 15 62.9 41.6
April 16 63.3 42.0
April 17 63.7 42.4
April 18 63.9 42.8
April 19 64.3 43.2
April 20 64.6 43.6
April 21 64.9 44.0
April 22 65.2 44.3
April 23 65.6 44.6
April 24 66.0 45.0
April 25 66.4 45.5
April 26 66.7 45.9
April 27 67.0 46.2
April 28 67.3 46.5
April 29 67.5 46.8
April 30 67.7 47.0
May 1 68.0 47.3
May 2 68.2 47.6
May 3 68.4 47.9
May 4 68.5 48.1
May 5 68.7 48.4
May 6 69.1 48.7
May 7 69.4 49.0
May 8 69.8 49.4
May 9 70.1 49.8
May 10 70.5 50.1
May 11 70.8 50.5
May 12 71.3 51.0
May 13 71.7 51.5
May 14 72.1 52.0
May 15 72.4 52.3
May 16 72.7 52.6
May 17 73.1 53.0
May 18 73.4 53.3
May 19 73.8 53.6
May 20 74.0 53.9
May 21 74.2 54.2
May 22 74.4 54.4
May 23 74.6 54.6
May 24 74.8 54.8
May 25 75.0 55.1
May 26 75.3 55.4
May 27 75.7 55.8
May 28 76.1 56.3
May 29 76.5 56.7
May 30 76.8 57.1
May 31 77.1 57.4
June 1 77.4 57.7
June 2 77.8 58.0
June 3 78.2 58.4
June 4 78.6 58.8
June 5 78.9 59.2
June 6 79.2 59.5
June 7 79.4 59.9
June 8 79.7 60.2
June 9 79.9 60.4
June 10 80.2 60.6
June 11 80.5 60.9
June 12 80.7 61.0
June 13 80.8 61.2
June 14 81.0 61.4
June 15 81.2 61.6
June 16 81.3 61.8
June 17 81.6 62.0
June 18 81.9 62.2
June 19 82.2 62.5
June 20 82.4 62.8
June 21 82.6 63.1
June 22 82.8 63.2
June 23 83.0 63.4
June 24 83.1 63.6
June 25 83.3 63.7
June 26 83.4 63.7
June 27 83.4 63.7
June 28 83.5 63.8
June 29 83.6 63.9
June 30 83.8 64.1
July 1 83.8 64.1
July 2 83.9 64.2
July 3 84.0 64.3
July 4 84.1 64.4
July 5 84.2 64.5
July 6 84.3 64.6
July 7 84.3 64.7
July 8 84.4 64.8
July 9 84.4 64.9
July 10 84.4 64.9
July 11 84.4 64.9
July 12 84.4 64.9
July 13 84.5 65.0
July 14 84.5 65.0
July 15 84.5 65.1
July 16 84.5 65.1
July 17 84.5 65.1
July 18 84.5 65.1
July 19 84.6 65.1
July 20 84.6 65.1
July 21 84.6 65.1
July 22 84.5 65.1
July 23 84.4 65.0
July 24 84.3 64.9
July 25 84.3 64.9
July 26 84.3 64.9
July 27 84.3 64.9
July 28 84.2 64.9
July 29 84.1 64.8
July 30 84.1 64.8
July 31 83.9 64.7
August 1 83.8 64.5
August 2 83.7 64.4
August 3 83.6 64.2
August 4 83.5 64.1
August 5 83.5 64.0
August 6 83.4 63.9
August 7 83.4 63.7
August 8 83.3 63.7
August 9 83.3 63.6
August 10 83.3 63.5
August 11 83.3 63.4
August 12 83.3 63.4
August 13 83.3 63.4
August 14 83.3 63.4
August 15 83.3 63.3
August 16 83.1 63.2
August 17 83.0 63.1
August 18 82.9 62.9
August 19 82.8 62.8
August 20 82.9 62.7
August 21 82.9 62.6
August 22 82.7 62.4
August 23 82.7 62.3
August 24 82.6 62.2
August 25 82.4 62.0
August 26 82.3 61.8
August 27 82.2 61.7
August 28 82.0 61.5
August 29 81.9 61.3
August 30 81.8 61.1
August 31 81.7 60.9
September 1 81.5 60.6
September 2 81.2 60.4
September 3 81.0 60.0
September 4 80.8 59.7
September 5 80.6 59.5
September 6 80.4 59.3
September 7 80.2 59.0
September 8 79.9 58.7
September 9 79.6 58.3
September 10 79.3 57.9
September 11 78.9 57.5
September 12 78.5 57.1
September 13 78.2 56.8
September 14 77.8 56.4
September 15 77.4 55.9
September 16 77.0 55.5
September 17 76.7 55.0
September 18 76.3 54.7
September 19 76.0 54.4
September 20 75.6 54.2
September 21 75.2 53.8
September 22 74.9 53.3
September 23 74.6 52.9
September 24 74.2 52.5
September 25 73.9 52.2
September 26 73.5 51.9
September 27 73.2 51.5
September 28 72.8 51.1
September 29 72.4 50.7
September 30 72.0 50.3
October 1 71.6 49.9
October 2 71.1 49.6
October 3 70.7 49.2
October 4 70.2 48.8
October 5 69.6 48.3
October 6 69.1 47.9
October 7 68.7 47.6
October 8 68.3 47.2
October 9 67.9 46.9
October 10 67.4 46.6
October 11 67.0 46.2
October 12 66.6 45.8
October 13 66.1 45.5
October 14 65.6 45.2
October 15 65.2 45.0
October 16 64.8 44.7
October 17 64.3 44.4
October 18 63.8 44.0
October 19 63.4 43.6
October 20 62.9 43.2
October 21 62.4 42.8
October 22 61.9 42.5
October 23 61.4 42.1
October 24 60.9 41.7
October 25 60.4 41.2
October 26 59.9 40.9
October 27 59.5 40.6
October 28 59.0 40.2
October 29 58.5 39.7
October 30 57.9 39.3
October 31 57.5 39.0
November 1 57.1 38.7
November 2 56.6 38.4
November 3 56.2 38.1
November 4 55.8 37.8
November 5 55.5 37.5
November 6 55.0 37.3
November 7 54.5 37.0
November 8 54.1 36.6
November 9 53.8 36.3
November 10 53.3 35.9
November 11 53.0 35.5
November 12 52.6 35.3
November 13 52.3 35.0
November 14 51.8 34.6
November 15 51.5 34.3
November 16 51.2 34.1
November 17 50.8 33.8
November 18 50.4 33.6
November 19 49.9 33.3
November 20 49.5 33.1
November 21 49.0 32.8
November 22 48.5 32.5
November 23 48.0 32.1
November 24 47.5 31.8
November 25 47.0 31.4
November 26 46.6 31.1
November 27 46.3 31.0
November 28 45.9 30.7
November 29 45.6 30.5
November 30 45.3 30.3
December 1 45.0 30.0
December 2 44.8 29.8
December 3 44.3 29.5
December 4 43.9 29.1
December 5 43.5 28.8
December 6 43.1 28.4
December 7 42.8 28.2
December 8 42.5 28.0
December 9 42.2 27.8
December 10 41.8 27.5
December 11 41.4 27.1
December 12 41.1 26.8
December 13 40.8 26.6
December 14 40.5 26.3
December 15 40.2 26.0
December 16 40.0 25.9
December 17 39.8 25.8
December 18 39.6 25.5
December 19 39.4 25.3
December 20 39.3 25.2
December 21 39.3 25.1
December 22 39.1 25.0
December 23 39.0 24.9
December 24 38.8 24.7
December 25 38.6 24.5
December 26 38.4 24.4
December 27 38.3 24.2
December 28 38.3 24.2
December 29 38.3 24.1
December 30 38.2 24.0
December 31 37.9 23.8
Weather Station Details
Years Station Coordinates
1948–2024 Dayton International Airport location
1893–1947 Dayton location
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