Grand Rapids, Michigan September 1988 Average Temperature Rankings
1991-2020
Degrees Fahrenheit
1
62.2
63.5
-1.3
23
38
1993
2005
1984
1987
normal
1970
2
68.2
67.3
0.9
48
13
1992
2005
1987
1983
top-third
3
70.7
69.2
1.5
51
10
1992
2005,2016
1987
1983
top-third
2021
4
70.3
69.1
1.2
51
10
1992
2005
1987
1983
top-third
1998
5
68.6
67.2
1.4
51
10
1992
2018
1986
1987
top-third
6
65.2
63.9
1.3
54
7
1992
2010
1986
1987
top-third
1999,2007,2016
7
60.9
59.9
1.0
51
10
1992
2012
1986
1987
top-third
8
56.0
55.7
0.3
40
21
1978
2012
1986
1987
normal
1973
9
52.2
52.3
-0.1
39
22
1978
2012
1986
1987
normal
1964,1995,2001
10
50.2
50.1
0.1
39
22
1978
2012
1986
1987
normal
2013
11
49.4
49.2
0.2
40
20
2014
2012
1986
1987
top-third
1976
12
49.1
49.4
-0.3
34
26
1978,1979
2012
1986
1987
normal
1985
18
54.7
54.2
0.5
47
13
1970,1979
2012
1986
1987
top-third
2010,2021,2023
24
49.9
49.4
0.5
48
11
1979
2017
1987
1988
top-third
2022,2023
36
49.4
49.4
0.0
41
17
1979
2012
1987
1987
top-third
1987
48
49.3
49.4
-0.1
39
18
1972,1980
2013
1987
1988
top-third
60
48.9
49.4
-0.5
28
28
1982
2002
1986
1987
normal
1989,1990,1992