Monthly Temperature Data
Grand Rapids, Michigan
(July 1987 through June 1997)

Month/Year

Actual temperature

Normal temperature

Deviation from normal

July 1987 74.1 71.4 2.7
Aug. 1987 69.3 69.6 -0.3
Sept. 1987 62.2 62.1 0.1
Oct. 1987 45 50.9 -5.9
Nov. 1987 41.1 38.5 2.6
Dec. 1987 31.5 27.3 4.2
Jan. 1988 20.8 22 -1.2
Feb. 1988 20.7 23.7 -3
Mar. 1988 34.1 33.1 1
April 1988 47.1 46.3 0.8
May 1988 60.9 57.5 3.4
June 1988 68.5 67.1 1.4
July 1988 74.7 71.4 3.3
Aug. 1988 73.4 69.6 3.8
Sept. 1988 61.3 62.1 -0.8
Oct. 1988 44.2 50.9 -6.7
Nov.1988 40.7 38.5 2.2
Dec. 1988 27.3 27.3 0
Jan. 1989 30.5 22 8.5
Feb. 1989 19.7 23.7 -4
Mar. 1989 31.8 33.1 -1.3
April 1989 43.9 46.3 -2.4
May 1989 55.8 57.5 -1.7
June 1989 65.9 67.1 -1.2
July 1989 71.9 71.4 0.5
Aug. 1989 68.4 69.6 -1.2
Sept. 1989 59.4 62.1 -2.7
Oct. 1989 51.1 50.9 0.2
Nov. 1989 35.7 38.5 -2.8
Dec. 1989 17.2 27.3 -10.1
Jan. 1990 32.1 22 10.1
Feb. 1990 28.1 23.7 4.4
Mar. 1990 37.1 33.1 4
April 1990 47.7 46.3 1.4
May 1990 55 57.5 -2.5
June 1990 67.1 67.1 0
July 1990 70.3 71.4 -1.1
Aug. 1990 69 69.6 -0.6
Sept. 1990 62.8 62.1 0.7
Oct. 1990 49.9 50.9 -1
Nov. 1990 43.3 38.5 4.8
Dec. 1990 30 27.3 2.7
Jan. 1991 22.2 22 0.2
Feb. 1991 29.2 23.7 5.5
Mar. 1991 37.9 33.1 4.8
April 1991 50.8 46.3 4.5
May 1991 64.6 57.5 7.1
June 1991 71.2 67.1 4.1
July 1991 72.4 71.4 1
Aug. 1991 70.5 69.6 0.9
Sept. 1991 60.1 62.1 -2
Oct. 1991 52 50.9 1.1
Nov. 1991 35.7 38.5 -2.8
Dec. 1991 29.4 27.3 2.1
Jan. 1992 27.5 22 5.5
Feb. 1992 30.3 23.7 6.6
Mar. 1992 33.7 33.1 0.6
April 1992 44 46.3 -2.3
May 1992 57.4 57.5 -0.1
June 1992 64.3 67.1 -2.8
July 1992 67.2 71.4 -4.2
Aug. 1992 65 69.6 -4.6
Sept. 1992 59.7 62.1 -2.4
Oct. 1992 48.2 50.9 -2.7
Nov. 1992 38.2 38.5 -0.3
Dec. 1992 30.5 27.3 3.2
Jan. 1993 25.9 21.8 4.1
Feb. 1993 21.9 23.7 -1.8
Mar. 1993 32.4 34.1 -1.7
April 1993 44 46 -2
May 1993 58.2 57.5 0.7
June 1993 65.2 67 -1.8
July 1993 72.7 71.6 1.1
Aug. 1993 71.5 69.5 2
Sept. 1993 56.5 60.9 -4.4
Oct. 1993 48 49.5 -1.5
Nov. 1993 37.9 38 -0.1
Dec. 1993 27.8 27.1 0.8
Jan. 1994 14.5 21.8 -7.3
Feb. 1994 19.2 23.7 -4.5
Mar. 1994 34.1 34.1 0
April 1994 47.9 46 1.9
May 1994 56.1 57.5 -1.4
June 1994 68.6 67 1.6
July 1994 71.1 71.6 -0.5
Aug. 1994 66.6 69.5 -2.9
Sept. 1994 63.8 60.9 2.9
Oct. 1994 51.7 49.5 2.2
Nov. 1994 42.3 38 4.3
Dec. 1994 33.2 27.1 6.1
Jan. 1995 26.5 21.8 4.7
Feb. 1995 23.1 23.7 -0.6
Mar. 1995 37 34.1 2.9
April 1995 42.8 46 -3.2
May 1995 56.4 57.5 -1.1
June 1995 69.8 67 2.8
July 1995 72.5 71.6 0.9
Aug. 1995 74.8 69.5 5.3
Sept. 1995 59.1 60.9 -1.8
Oct. 1995 51.5 49.5 2
Nov. 1995 32 38 -6
Dec. 1995 24.1 27.1 -3
Jan. 1996 21.7 21.8 -0.1
Feb. 1996 24.4 23.7 0.7
Mar. 1996 28.4 34.1 -5.7
April 1996 43 46 -3
May 1996 55.6 57.5 -1.9
June 1996 67.7 67 0.7
July 1996 68.2 71.6 -3.4
Aug. 1996 72.2 69.5 2.7
Sept. 1996 62.3 60.9 1.3
Oct. 1996 50.2 49.5 0.7
Mov. 1996 33.2 38 -4.8
Dec. 1996 28.7 27.1 1.6
Jan. 1997 21.6 21.8 -0.2
Feb. 1997 27.3 23.7 3.6
Mar. 1997 34.6 34.1 0.5
April 1997 44.1 46 -1.9
May 1997 50.3 57.5 -7.2
June 1997 68.3 67 1.3