Indianapolis Average Weather by Day

Data and chart of the the average high and low temperature for every day of the year in Indianapolis, Indiana, based on NOAA data.
Also see:
What's the hottest day of the year in Indianapolis?
On average, July 20 is the hottest day of the year Indianapolis, Indiana. From 1991–2020, the average high temperature on July 20 was 85.6 °F and the average low was 66.6 °F.
What's the coldest day of the year in Indianapolis?
On average, January 19 is the coldest day of the year Indianapolis, Indiana. From 1991–2020, the average high temperature on January 19 was 36.1 °F, and the average low was 20.6 °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 38.0 23.4
January 2 37.9 23.2
January 3 37.8 23.0
January 4 37.6 22.8
January 5 37.3 22.5
January 6 37.1 22.3
January 7 36.9 22.0
January 8 36.9 22.0
January 9 37.0 22.0
January 10 36.9 21.9
January 11 36.7 21.7
January 12 36.5 21.4
January 13 36.4 21.2
January 14 36.4 21.0
January 15 36.2 20.9
January 16 36.1 20.8
January 17 36.1 20.7
January 18 36.1 20.7
January 19 36.1 20.6
January 20 36.2 20.7
January 21 36.4 20.7
January 22 36.4 20.7
January 23 36.5 20.7
January 24 36.6 20.8
January 25 36.6 20.8
January 26 36.5 20.6
January 27 36.5 20.5
January 28 36.5 20.5
January 29 36.6 20.5
January 30 36.7 20.6
January 31 36.9 20.7
February 1 37.0 20.9
February 2 37.3 21.1
February 3 37.5 21.4
February 4 37.8 21.6
February 5 38.1 21.8
February 6 38.5 22.1
February 7 38.8 22.3
February 8 39.1 22.7
February 9 39.4 23.0
February 10 39.7 23.2
February 11 39.9 23.5
February 12 40.1 23.7
February 13 40.4 23.8
February 14 40.7 24.0
February 15 41.1 24.3
February 16 41.3 24.5
February 17 41.4 24.6
February 18 41.5 24.8
February 19 41.9 25.0
February 20 42.2 25.3
February 21 42.6 25.6
February 22 43.0 25.9
February 23 43.4 26.2
February 24 43.8 26.5
February 25 44.1 26.7
February 26 44.5 27.0
February 27 45.0 27.4
February 28 45.6 27.8
March 1 46.1 28.2
March 2 46.5 28.4
March 3 47.0 28.8
March 4 47.4 29.2
March 5 47.8 29.5
March 6 48.2 29.9
March 7 48.4 30.1
March 8 48.7 30.2
March 9 49.1 30.4
March 10 49.4 30.7
March 11 49.8 31.0
March 12 50.2 31.4
March 13 50.6 31.7
March 14 51.1 32.2
March 15 51.4 32.6
March 16 51.8 32.9
March 17 52.3 33.3
March 18 52.9 33.7
March 19 53.5 34.2
March 20 54.0 34.6
March 21 54.4 34.9
March 22 54.7 35.1
March 23 55.0 35.4
March 24 55.4 35.8
March 25 55.9 36.2
March 26 56.3 36.6
March 27 56.7 36.9
March 28 57.3 37.3
March 29 57.6 37.6
March 30 57.9 38.0
March 31 58.4 38.3
April 1 58.8 38.7
April 2 59.2 39.0
April 3 59.6 39.3
April 4 60.1 39.7
April 5 60.6 40.1
April 6 61.1 40.6
April 7 61.3 40.9
April 8 61.6 41.2
April 9 62.0 41.4
April 10 62.4 41.8
April 11 62.7 42.1
April 12 63.1 42.3
April 13 63.4 42.5
April 14 63.6 42.8
April 15 63.9 43.0
April 16 64.3 43.4
April 17 64.6 43.8
April 18 64.8 44.1
April 19 65.1 44.5
April 20 65.4 44.9
April 21 65.7 45.2
April 22 66.1 45.5
April 23 66.5 45.9
April 24 66.8 46.3
April 25 67.2 46.7
April 26 67.4 47.1
April 27 67.8 47.4
April 28 68.1 47.7
April 29 68.3 48.0
April 30 68.5 48.2
May 1 68.7 48.4
May 2 69.0 48.8
May 3 69.1 49.1
May 4 69.3 49.3
May 5 69.5 49.6
May 6 69.9 49.9
May 7 70.2 50.3
May 8 70.6 50.6
May 9 71.0 51.0
May 10 71.4 51.3
May 11 71.6 51.7
May 12 72.0 52.2
May 13 72.5 52.6
May 14 72.9 53.0
May 15 73.2 53.4
May 16 73.5 53.7
May 17 73.9 54.1
May 18 74.2 54.4
May 19 74.6 54.7
May 20 74.8 55.0
May 21 75.0 55.3
May 22 75.2 55.5
May 23 75.4 55.8
May 24 75.7 56.0
May 25 75.9 56.3
May 26 76.2 56.6
May 27 76.6 57.0
May 28 77.0 57.5
May 29 77.4 58.0
May 30 77.7 58.4
May 31 78.1 58.7
June 1 78.4 59.0
June 2 78.8 59.3
June 3 79.2 59.7
June 4 79.6 60.0
June 5 79.9 60.4
June 6 80.2 60.7
June 7 80.4 61.1
June 8 80.6 61.3
June 9 80.9 61.6
June 10 81.2 61.9
June 11 81.4 62.1
June 12 81.6 62.3
June 13 81.8 62.5
June 14 81.9 62.7
June 15 82.1 62.9
June 16 82.3 63.1
June 17 82.5 63.3
June 18 82.8 63.5
June 19 83.1 63.8
June 20 83.3 64.0
June 21 83.5 64.3
June 22 83.7 64.5
June 23 83.8 64.7
June 24 84.0 64.8
June 25 84.1 64.9
June 26 84.2 65.0
June 27 84.2 65.0
June 28 84.3 65.1
June 29 84.4 65.2
June 30 84.5 65.4
July 1 84.6 65.5
July 2 84.7 65.5
July 3 84.8 65.6
July 4 84.8 65.7
July 5 85.0 65.9
July 6 85.1 66.0
July 7 85.1 66.1
July 8 85.2 66.2
July 9 85.3 66.3
July 10 85.3 66.3
July 11 85.3 66.3
July 12 85.4 66.4
July 13 85.4 66.4
July 14 85.5 66.5
July 15 85.5 66.5
July 16 85.4 66.5
July 17 85.4 66.6
July 18 85.5 66.5
July 19 85.6 66.5
July 20 85.6 66.6
July 21 85.6 66.6
July 22 85.5 66.5
July 23 85.4 66.5
July 24 85.4 66.4
July 25 85.4 66.4
July 26 85.4 66.4
July 27 85.4 66.4
July 28 85.4 66.4
July 29 85.3 66.3
July 30 85.2 66.3
July 31 85.1 66.2
August 1 85.0 66.1
August 2 84.9 66.0
August 3 84.8 65.9
August 4 84.7 65.8
August 5 84.6 65.7
August 6 84.6 65.6
August 7 84.5 65.5
August 8 84.5 65.4
August 9 84.5 65.4
August 10 84.4 65.3
August 11 84.4 65.2
August 12 84.4 65.2
August 13 84.5 65.2
August 14 84.5 65.2
August 15 84.5 65.2
August 16 84.4 65.2
August 17 84.3 65.1
August 18 84.1 65.0
August 19 84.0 64.9
August 20 84.1 64.8
August 21 84.1 64.7
August 22 84.0 64.5
August 23 83.9 64.4
August 24 83.8 64.2
August 25 83.7 64.0
August 26 83.5 63.9
August 27 83.4 63.7
August 28 83.2 63.5
August 29 83.1 63.3
August 30 83.0 63.1
August 31 82.8 62.9
September 1 82.6 62.6
September 2 82.4 62.3
September 3 82.2 62.0
September 4 82.0 61.7
September 5 81.8 61.5
September 6 81.6 61.2
September 7 81.4 61.0
September 8 81.0 60.6
September 9 80.7 60.3
September 10 80.4 59.9
September 11 80.0 59.5
September 12 79.6 59.1
September 13 79.2 58.6
September 14 78.9 58.2
September 15 78.5 57.7
September 16 78.2 57.2
September 17 77.9 56.8
September 18 77.5 56.4
September 19 77.1 56.0
September 20 76.7 55.7
September 21 76.3 55.3
September 22 75.9 54.9
September 23 75.6 54.4
September 24 75.3 54.0
September 25 74.9 53.7
September 26 74.6 53.3
September 27 74.2 52.9
September 28 73.8 52.5
September 29 73.4 52.1
September 30 73.0 51.7
October 1 72.6 51.3
October 2 72.1 50.9
October 3 71.6 50.4
October 4 71.1 50.0
October 5 70.5 49.5
October 6 70.0 49.0
October 7 69.6 48.6
October 8 69.3 48.2
October 9 68.9 47.9
October 10 68.4 47.5
October 11 68.0 47.1
October 12 67.5 46.8
October 13 67.0 46.4
October 14 66.5 46.1
October 15 66.1 45.8
October 16 65.6 45.5
October 17 65.2 45.2
October 18 64.7 44.8
October 19 64.3 44.4
October 20 63.8 44.0
October 21 63.3 43.6
October 22 62.8 43.3
October 23 62.3 42.9
October 24 61.7 42.4
October 25 61.3 42.0
October 26 60.8 41.7
October 27 60.4 41.3
October 28 59.9 40.9
October 29 59.4 40.5
October 30 58.8 40.1
October 31 58.4 39.7
November 1 57.9 39.5
November 2 57.5 39.1
November 3 57.0 38.8
November 4 56.6 38.6
November 5 56.2 38.3
November 6 55.7 38.0
November 7 55.3 37.7
November 8 54.9 37.3
November 9 54.5 36.9
November 10 54.0 36.5
November 11 53.6 36.1
November 12 53.3 35.9
November 13 52.9 35.6
November 14 52.4 35.2
November 15 52.1 34.9
November 16 51.7 34.7
November 17 51.3 34.4
November 18 50.9 34.1
November 19 50.5 33.8
November 20 50.0 33.6
November 21 49.6 33.2
November 22 49.1 32.9
November 23 48.6 32.5
November 24 48.0 32.2
November 25 47.5 31.8
November 26 47.1 31.5
November 27 46.8 31.2
November 28 46.4 31.0
November 29 46.1 30.8
November 30 45.8 30.6
December 1 45.5 30.4
December 2 45.3 30.1
December 3 44.8 29.8
December 4 44.3 29.5
December 5 43.9 29.1
December 6 43.5 28.8
December 7 43.2 28.5
December 8 42.9 28.3
December 9 42.7 28.1
December 10 42.3 27.8
December 11 41.8 27.4
December 12 41.5 27.0
December 13 41.2 26.8
December 14 41.0 26.5
December 15 40.6 26.3
December 16 40.4 26.1
December 17 40.2 26.0
December 18 40.0 25.7
December 19 39.8 25.5
December 20 39.7 25.3
December 21 39.6 25.2
December 22 39.5 25.1
December 23 39.3 24.9
December 24 39.0 24.7
December 25 38.9 24.5
December 26 38.7 24.4
December 27 38.6 24.2
December 28 38.6 24.1
December 29 38.5 24.0
December 30 38.4 23.9
December 31 38.2 23.6
Weather Station Details
Years Station Coordinates
1948–2024 Indianapolis International Airport location
1901–1947 Whitestown location
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