Quincy Average Weather by Day

Data and chart of the the average high and low temperature for every day of the year in Quincy, Illinois, based on NOAA data.
Also see:
What's the hottest day of the year in Quincy?
On average, July 20 is the hottest day of the year Quincy, Illinois. From 1991–2020, the average high temperature on July 20 was 86.2 °F and the average low was 66.6 °F.
What's the coldest day of the year in Quincy?
On average, January 16 is the coldest day of the year Quincy, Illinois. From 1991–2020, the average high temperature on January 16 was 34.5 °F, and the average low was 18.6 °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 36.0 20.6
January 2 35.9 20.4
January 3 35.8 20.2
January 4 35.6 19.9
January 5 35.4 19.7
January 6 35.2 19.4
January 7 35.1 19.3
January 8 35.2 19.4
January 9 35.1 19.4
January 10 35.0 19.2
January 11 34.9 19.0
January 12 34.8 18.9
January 13 34.7 18.8
January 14 34.6 18.7
January 15 34.6 18.6
January 16 34.5 18.6
January 17 34.6 18.6
January 18 34.6 18.6
January 19 34.7 18.7
January 20 34.9 18.8
January 21 35.0 18.8
January 22 35.1 18.9
January 23 35.2 18.9
January 24 35.2 19.0
January 25 35.2 19.0
January 26 35.2 18.9
January 27 35.2 18.9
January 28 35.4 19.0
January 29 35.4 19.1
January 30 35.7 19.2
January 31 35.9 19.4
February 1 36.0 19.5
February 2 36.2 19.7
February 3 36.4 19.9
February 4 36.8 20.2
February 5 37.1 20.5
February 6 37.5 20.7
February 7 37.7 21.0
February 8 38.1 21.3
February 9 38.3 21.6
February 10 38.5 21.7
February 11 38.7 21.9
February 12 38.9 22.1
February 13 39.1 22.2
February 14 39.5 22.5
February 15 39.8 22.8
February 16 39.9 22.9
February 17 40.0 23.0
February 18 40.3 23.1
February 19 40.7 23.5
February 20 41.2 23.8
February 21 41.6 24.1
February 22 42.0 24.4
February 23 42.4 24.7
February 24 42.7 25.0
February 25 43.2 25.3
February 26 43.6 25.7
February 27 44.2 26.1
February 28 44.7 26.5
March 1 45.2 26.8
March 2 45.8 27.2
March 3 46.3 27.8
March 4 46.7 28.1
March 5 47.1 28.5
March 6 47.5 28.8
March 7 47.8 29.0
March 8 48.1 29.2
March 9 48.5 29.5
March 10 49.0 29.9
March 11 49.4 30.3
March 12 49.8 30.7
March 13 50.3 31.1
March 14 50.8 31.6
March 15 51.2 32.0
March 16 51.7 32.4
March 17 52.3 32.9
March 18 52.9 33.4
March 19 53.5 33.9
March 20 53.9 34.2
March 21 54.2 34.5
March 22 54.6 34.7
March 23 55.0 35.1
March 24 55.5 35.5
March 25 56.0 35.9
March 26 56.4 36.3
March 27 56.8 36.7
March 28 57.2 37.0
March 29 57.4 37.3
March 30 57.7 37.6
March 31 58.1 38.0
April 1 58.6 38.3
April 2 58.9 38.6
April 3 59.4 38.9
April 4 59.9 39.3
April 5 60.3 39.8
April 6 60.7 40.1
April 7 60.9 40.3
April 8 61.3 40.6
April 9 61.7 40.9
April 10 62.2 41.2
April 11 62.5 41.6
April 12 62.8 41.8
April 13 63.1 42.1
April 14 63.3 42.3
April 15 63.5 42.6
April 16 63.9 43.0
April 17 64.1 43.4
April 18 64.3 43.7
April 19 64.6 44.1
April 20 64.8 44.6
April 21 65.3 44.8
April 22 65.6 45.2
April 23 66.0 45.6
April 24 66.4 46.1
April 25 66.8 46.5
April 26 67.2 46.9
April 27 67.6 47.4
April 28 67.9 47.7
April 29 68.0 47.9
April 30 68.2 48.2
May 1 68.4 48.5
May 2 68.7 48.8
May 3 68.9 49.1
May 4 69.1 49.3
May 5 69.5 49.6
May 6 69.8 50.0
May 7 70.1 50.3
May 8 70.4 50.7
May 9 70.7 51.1
May 10 71.1 51.5
May 11 71.4 51.8
May 12 71.8 52.3
May 13 72.1 52.7
May 14 72.6 53.1
May 15 72.9 53.5
May 16 73.4 53.8
May 17 73.8 54.2
May 18 74.2 54.5
May 19 74.5 54.9
May 20 74.7 55.2
May 21 74.9 55.5
May 22 75.1 55.7
May 23 75.3 55.9
May 24 75.7 56.2
May 25 75.9 56.5
May 26 76.2 56.7
May 27 76.5 57.1
May 28 76.9 57.6
May 29 77.4 58.1
May 30 77.8 58.4
May 31 78.1 58.8
June 1 78.4 59.1
June 2 78.7 59.4
June 3 79.0 59.8
June 4 79.5 60.2
June 5 79.8 60.6
June 6 80.1 60.9
June 7 80.4 61.2
June 8 80.6 61.5
June 9 81.0 61.8
June 10 81.3 62.0
June 11 81.6 62.3
June 12 81.8 62.5
June 13 82.0 62.7
June 14 82.1 62.9
June 15 82.4 63.0
June 16 82.5 63.3
June 17 82.8 63.5
June 18 83.1 63.7
June 19 83.3 63.9
June 20 83.5 64.2
June 21 83.7 64.4
June 22 83.8 64.6
June 23 84.1 64.8
June 24 84.2 65.0
June 25 84.4 65.1
June 26 84.6 65.2
June 27 84.7 65.3
June 28 84.8 65.4
June 29 84.9 65.5
June 30 85.0 65.6
July 1 85.0 65.6
July 2 85.2 65.7
July 3 85.3 65.8
July 4 85.4 66.0
July 5 85.5 66.1
July 6 85.7 66.2
July 7 85.8 66.3
July 8 85.8 66.4
July 9 85.9 66.5
July 10 85.9 66.5
July 11 86.0 66.6
July 12 86.1 66.6
July 13 86.1 66.7
July 14 86.1 66.7
July 15 86.1 66.7
July 16 86.1 66.6
July 17 86.1 66.6
July 18 86.2 66.6
July 19 86.2 66.6
July 20 86.2 66.6
July 21 86.2 66.6
July 22 86.0 66.5
July 23 85.9 66.4
July 24 85.9 66.3
July 25 85.8 66.3
July 26 85.9 66.3
July 27 85.8 66.2
July 28 85.7 66.2
July 29 85.7 66.1
July 30 85.6 66.1
July 31 85.4 65.9
August 1 85.3 65.7
August 2 85.1 65.5
August 3 85.0 65.4
August 4 84.9 65.2
August 5 84.8 65.1
August 6 84.7 64.9
August 7 84.6 64.8
August 8 84.6 64.8
August 9 84.6 64.7
August 10 84.5 64.6
August 11 84.5 64.6
August 12 84.5 64.6
August 13 84.6 64.7
August 14 84.7 64.7
August 15 84.6 64.7
August 16 84.5 64.6
August 17 84.3 64.4
August 18 84.2 64.3
August 19 84.2 64.2
August 20 84.2 64.1
August 21 84.1 63.9
August 22 84.0 63.8
August 23 83.9 63.6
August 24 83.8 63.4
August 25 83.6 63.1
August 26 83.4 62.9
August 27 83.2 62.7
August 28 83.2 62.5
August 29 83.1 62.4
August 30 82.9 62.2
August 31 82.7 61.9
September 1 82.4 61.6
September 2 82.2 61.3
September 3 82.0 61.0
September 4 81.8 60.8
September 5 81.6 60.5
September 6 81.3 60.3
September 7 80.9 59.9
September 8 80.6 59.5
September 9 80.2 59.0
September 10 79.8 58.6
September 11 79.5 58.1
September 12 79.1 57.7
September 13 78.7 57.2
September 14 78.4 56.8
September 15 78.1 56.3
September 16 77.8 55.9
September 17 77.5 55.5
September 18 77.1 55.1
September 19 76.8 54.8
September 20 76.3 54.5
September 21 75.9 54.0
September 22 75.5 53.7
September 23 75.2 53.3
September 24 74.9 52.9
September 25 74.5 52.6
September 26 74.1 52.2
September 27 73.7 51.7
September 28 73.3 51.4
September 29 72.9 51.0
September 30 72.6 50.6
October 1 72.1 50.2
October 2 71.6 49.8
October 3 71.2 49.3
October 4 70.7 48.9
October 5 70.2 48.4
October 6 69.8 48.0
October 7 69.5 47.7
October 8 69.2 47.4
October 9 68.8 47.2
October 10 68.3 46.8
October 11 67.9 46.4
October 12 67.4 46.2
October 13 66.9 45.8
October 14 66.4 45.5
October 15 65.9 45.1
October 16 65.4 44.8
October 17 64.8 44.4
October 18 64.3 43.9
October 19 63.9 43.5
October 20 63.4 43.1
October 21 62.9 42.8
October 22 62.4 42.5
October 23 61.9 42.1
October 24 61.3 41.6
October 25 60.8 41.3
October 26 60.4 41.0
October 27 60.0 40.5
October 28 59.5 40.1
October 29 58.9 39.7
October 30 58.4 39.2
October 31 58.0 38.9
November 1 57.5 38.5
November 2 57.0 38.2
November 3 56.6 37.9
November 4 56.2 37.6
November 5 55.8 37.3
November 6 55.2 36.9
November 7 54.7 36.4
November 8 54.3 36.1
November 9 53.8 35.7
November 10 53.4 35.3
November 11 53.1 35.0
November 12 52.7 34.6
November 13 52.2 34.2
November 14 51.8 33.8
November 15 51.4 33.6
November 16 51.0 33.2
November 17 50.5 32.9
November 18 50.2 32.6
November 19 49.8 32.3
November 20 49.4 31.9
November 21 48.9 31.5
November 22 48.4 31.1
November 23 47.8 30.7
November 24 47.3 30.3
November 25 46.7 29.9
November 26 46.3 29.5
November 27 46.0 29.2
November 28 45.6 29.0
November 29 45.3 28.7
November 30 45.0 28.5
December 1 44.6 28.2
December 2 44.2 27.9
December 3 43.7 27.5
December 4 43.2 27.1
December 5 42.8 26.7
December 6 42.4 26.5
December 7 42.0 26.2
December 8 41.6 25.9
December 9 41.3 25.6
December 10 40.9 25.3
December 11 40.5 25.0
December 12 40.2 24.7
December 13 39.9 24.5
December 14 39.6 24.2
December 15 39.4 24.0
December 16 39.2 23.9
December 17 38.9 23.6
December 18 38.5 23.2
December 19 38.3 23.0
December 20 38.1 22.8
December 21 38.0 22.6
December 22 37.8 22.4
December 23 37.6 22.2
December 24 37.4 22.0
December 25 37.2 21.9
December 26 37.0 21.8
December 27 36.9 21.6
December 28 36.8 21.4
December 29 36.6 21.3
December 30 36.4 21.0
December 31 36.2 20.8
Weather Station Details
Years Station Coordinates
1949–2024 Quincy Regional Airport location
1901–1948 Quincy location
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