Rockford Average Weather by Day

Data and chart of the the average high and low temperature for every day of the year in Rockford, Illinois, based on NOAA data.
Also see:
What's the hottest day of the year in Rockford?
On average, July 19 is the hottest day of the year Rockford, Illinois. From 1991–2020, the average high temperature on July 19 was 84.3 °F and the average low was 63.2 °F.
What's the coldest day of the year in Rockford?
On average, January 27 is the coldest day of the year Rockford, Illinois. From 1991–2020, the average high temperature on January 27 was 28.9 °F, and the average low was 13.6 °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 31.4 16.4
January 2 31.3 16.3
January 3 31.1 16.1
January 4 30.9 15.8
January 5 30.7 15.4
January 6 30.5 15.1
January 7 30.2 14.9
January 8 30.3 14.9
January 9 30.2 14.9
January 10 30.0 14.8
January 11 29.9 14.5
January 12 29.6 14.3
January 13 29.5 14.1
January 14 29.3 14.0
January 15 29.3 13.8
January 16 29.1 13.8
January 17 29.1 13.8
January 18 29.0 13.8
January 19 29.0 13.7
January 20 29.0 13.7
January 21 29.1 13.7
January 22 29.1 13.7
January 23 29.1 13.8
January 24 29.2 13.9
January 25 29.1 13.9
January 26 29.0 13.7
January 27 28.9 13.6
January 28 29.0 13.5
January 29 29.1 13.5
January 30 29.3 13.6
January 31 29.5 13.7
February 1 29.7 13.9
February 2 29.8 14.1
February 3 30.1 14.4
February 4 30.5 14.7
February 5 30.8 14.9
February 6 31.1 15.1
February 7 31.4 15.3
February 8 31.7 15.7
February 9 32.0 16.0
February 10 32.3 16.2
February 11 32.5 16.5
February 12 32.8 16.6
February 13 33.0 16.8
February 14 33.3 17.1
February 15 33.7 17.3
February 16 33.9 17.5
February 17 34.1 17.6
February 18 34.3 17.8
February 19 34.7 18.2
February 20 35.1 18.5
February 21 35.4 18.8
February 22 35.8 19.1
February 23 36.2 19.4
February 24 36.6 19.8
February 25 37.1 20.2
February 26 37.6 20.6
February 27 38.1 21.0
February 28 38.7 21.5
March 1 39.1 21.8
March 2 39.7 22.2
March 3 40.2 22.7
March 4 40.7 23.1
March 5 41.1 23.5
March 6 41.6 23.8
March 7 41.9 24.1
March 8 42.3 24.4
March 9 42.7 24.6
March 10 43.2 25.0
March 11 43.6 25.3
March 12 44.2 25.7
March 13 44.8 26.2
March 14 45.4 26.7
March 15 45.9 27.1
March 16 46.5 27.5
March 17 47.2 28.0
March 18 47.8 28.5
March 19 48.4 29.0
March 20 49.1 29.4
March 21 49.4 29.7
March 22 49.9 29.9
March 23 50.5 30.2
March 24 51.0 30.6
March 25 51.4 31.0
March 26 51.8 31.3
March 27 52.2 31.7
March 28 52.7 32.0
March 29 53.0 32.3
March 30 53.3 32.7
March 31 53.7 33.0
April 1 54.2 33.4
April 2 54.7 33.7
April 3 55.1 34.1
April 4 55.7 34.4
April 5 56.1 34.8
April 6 56.5 35.2
April 7 56.9 35.5
April 8 57.3 35.8
April 9 57.7 36.0
April 10 58.2 36.4
April 11 58.5 36.7
April 12 58.9 36.9
April 13 59.2 37.2
April 14 59.4 37.4
April 15 59.7 37.7
April 16 60.0 38.1
April 17 60.3 38.5
April 18 60.5 38.8
April 19 61.0 39.2
April 20 61.4 39.6
April 21 61.8 40.0
April 22 62.3 40.4
April 23 62.7 40.8
April 24 63.2 41.3
April 25 63.7 41.7
April 26 64.1 42.1
April 27 64.5 42.5
April 28 64.9 42.8
April 29 65.1 43.1
April 30 65.3 43.4
May 1 65.7 43.7
May 2 66.0 44.0
May 3 66.3 44.2
May 4 66.5 44.4
May 5 66.9 44.7
May 6 67.3 45.1
May 7 67.7 45.4
May 8 68.1 45.8
May 9 68.5 46.2
May 10 68.8 46.6
May 11 69.1 47.0
May 12 69.6 47.4
May 13 70.0 47.8
May 14 70.4 48.2
May 15 70.9 48.6
May 16 71.4 48.9
May 17 71.8 49.3
May 18 72.2 49.6
May 19 72.4 50.0
May 20 72.6 50.3
May 21 72.8 50.6
May 22 73.1 50.7
May 23 73.4 51.0
May 24 73.7 51.3
May 25 74.0 51.6
May 26 74.4 51.9
May 27 74.8 52.4
May 28 75.3 52.9
May 29 75.6 53.3
May 30 76.0 53.6
May 31 76.3 54.0
June 1 76.6 54.4
June 2 77.0 54.8
June 3 77.4 55.2
June 4 77.8 55.6
June 5 78.1 56.0
June 6 78.4 56.4
June 7 78.6 56.7
June 8 78.9 57.1
June 9 79.3 57.4
June 10 79.6 57.7
June 11 79.9 58.0
June 12 80.1 58.2
June 13 80.4 58.5
June 14 80.5 58.7
June 15 80.7 59.0
June 16 80.9 59.2
June 17 81.2 59.5
June 18 81.4 59.7
June 19 81.7 60.0
June 20 81.9 60.3
June 21 82.1 60.6
June 22 82.3 60.8
June 23 82.5 61.0
June 24 82.6 61.2
June 25 82.7 61.3
June 26 82.8 61.4
June 27 82.9 61.5
June 28 83.0 61.6
June 29 83.1 61.8
June 30 83.2 61.9
July 1 83.3 62.0
July 2 83.4 62.1
July 3 83.5 62.2
July 4 83.7 62.4
July 5 83.7 62.5
July 6 83.8 62.6
July 7 83.9 62.7
July 8 83.9 62.8
July 9 83.9 62.9
July 10 83.9 62.9
July 11 84.0 62.9
July 12 83.9 63.0
July 13 84.0 63.0
July 14 84.0 63.1
July 15 84.0 63.1
July 16 84.0 63.2
July 17 84.1 63.2
July 18 84.2 63.2
July 19 84.3 63.2
July 20 84.2 63.2
July 21 84.2 63.2
July 22 84.1 63.0
July 23 84.0 63.0
July 24 84.0 63.0
July 25 84.0 63.0
July 26 84.0 63.0
July 27 84.0 63.0
July 28 83.8 63.0
July 29 83.7 62.9
July 30 83.6 62.9
July 31 83.5 62.8
August 1 83.3 62.6
August 2 83.2 62.4
August 3 83.1 62.3
August 4 82.9 62.2
August 5 82.8 62.0
August 6 82.7 61.9
August 7 82.6 61.8
August 8 82.6 61.7
August 9 82.5 61.6
August 10 82.5 61.6
August 11 82.5 61.5
August 12 82.4 61.5
August 13 82.4 61.5
August 14 82.3 61.5
August 15 82.2 61.4
August 16 82.0 61.3
August 17 81.8 61.1
August 18 81.7 61.0
August 19 81.7 60.9
August 20 81.6 60.8
August 21 81.5 60.6
August 22 81.4 60.4
August 23 81.3 60.3
August 24 81.2 60.1
August 25 81.0 59.9
August 26 80.8 59.7
August 27 80.7 59.5
August 28 80.5 59.2
August 29 80.4 59.0
August 30 80.2 58.8
August 31 80.0 58.5
September 1 79.8 58.3
September 2 79.6 58.0
September 3 79.5 57.7
September 4 79.3 57.5
September 5 79.1 57.2
September 6 78.8 56.9
September 7 78.5 56.6
September 8 78.1 56.2
September 9 77.8 55.8
September 10 77.4 55.4
September 11 77.1 54.9
September 12 76.8 54.5
September 13 76.4 54.1
September 14 76.0 53.7
September 15 75.6 53.2
September 16 75.3 52.8
September 17 74.9 52.4
September 18 74.4 52.0
September 19 74.1 51.7
September 20 73.6 51.3
September 21 73.1 50.8
September 22 72.7 50.4
September 23 72.4 50.0
September 24 72.2 49.6
September 25 71.9 49.2
September 26 71.5 48.8
September 27 71.1 48.4
September 28 70.8 48.1
September 29 70.3 47.7
September 30 69.9 47.3
October 1 69.4 46.9
October 2 68.8 46.5
October 3 68.4 46.0
October 4 67.9 45.5
October 5 67.4 45.1
October 6 67.0 44.6
October 7 66.6 44.3
October 8 66.2 43.9
October 9 65.9 43.6
October 10 65.3 43.2
October 11 64.9 42.8
October 12 64.3 42.5
October 13 63.9 42.2
October 14 63.4 41.9
October 15 62.9 41.5
October 16 62.4 41.2
October 17 61.9 40.9
October 18 61.4 40.5
October 19 60.9 40.1
October 20 60.5 39.7
October 21 60.0 39.4
October 22 59.4 39.0
October 23 58.8 38.6
October 24 58.2 38.2
October 25 57.7 37.8
October 26 57.1 37.5
October 27 56.6 37.1
October 28 56.1 36.7
October 29 55.5 36.2
October 30 55.0 35.8
October 31 54.6 35.4
November 1 54.0 35.0
November 2 53.5 34.8
November 3 53.0 34.5
November 4 52.5 34.2
November 5 52.0 33.9
November 6 51.5 33.5
November 7 51.0 33.0
November 8 50.5 32.7
November 9 50.0 32.3
November 10 49.6 31.9
November 11 49.2 31.5
November 12 48.7 31.2
November 13 48.2 30.8
November 14 47.7 30.4
November 15 47.3 30.1
November 16 46.9 29.8
November 17 46.5 29.4
November 18 46.0 29.1
November 19 45.6 28.8
November 20 45.1 28.5
November 21 44.6 28.0
November 22 44.1 27.6
November 23 43.4 27.2
November 24 42.8 26.8
November 25 42.2 26.3
November 26 41.8 26.0
November 27 41.4 25.6
November 28 41.0 25.2
November 29 40.6 25.0
November 30 40.2 24.7
December 1 39.9 24.4
December 2 39.5 24.1
December 3 39.0 23.7
December 4 38.5 23.2
December 5 38.0 22.8
December 6 37.6 22.5
December 7 37.2 22.2
December 8 36.8 21.9
December 9 36.5 21.6
December 10 36.0 21.2
December 11 35.7 20.9
December 12 35.4 20.6
December 13 35.1 20.3
December 14 34.8 20.0
December 15 34.5 19.8
December 16 34.3 19.6
December 17 34.0 19.3
December 18 33.7 19.0
December 19 33.5 18.7
December 20 33.3 18.5
December 21 33.2 18.4
December 22 33.1 18.2
December 23 32.9 18.0
December 24 32.7 17.8
December 25 32.5 17.6
December 26 32.5 17.5
December 27 32.4 17.4
December 28 32.3 17.3
December 29 32.1 17.1
December 30 31.9 16.9
December 31 31.6 16.6
Weather Station Details
Years Station Coordinates
1951–2024 Greater Rockford Airport location
1893–1950 Rockford location
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