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City Data Info
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Grand Rapids, Michigan

Average Temperature Rankings, September 1991

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  • Record Coolest
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1981-2010
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1991
1-Month
60.7°F
(15.9°C)
62.7°F
(17.1°C)
-2.0°F
(-1.2°C)
10th Coolest
Coolest since:
1993
50th Warmest
Warmest since:
2015
Ties: 1981
Aug–Sep 1991
2-Month
65.9°F
(18.8°C)
66.7°F
(19.3°C)
-0.8°F
(-0.5°C)
17th Coolest
Coolest since:
1967
43rd Warmest
Warmest since:
2016
Ties: 1979, 2000
Jul–Sep 1991
3-Month
68.3°F
(20.2°C)
68.6°F
(20.3°C)
-0.3°F
(-0.1°C)
26th Coolest
Coolest since:
1992
34th Warmest
Warmest since:
2016
Ties: 2003
Jun–Sep 1991
4-Month
69.1°F
(20.6°C)
68.5°F
(20.3°C)
0.6°F
(0.3°C)
38th Coolest
Coolest since:
1992
22nd Warmest
Warmest since:
2005
Ties: 2008
May–Sep 1991
5-Month
68.4°F
(20.2°C)
66.6°F
(19.2°C)
1.8°F
(1.0°C)
53rd Coolest
Coolest since:
1974, 1992
7th Warmest
Warmest since:
2018
Ties: 1987
Apr–Sep 1991
6-Month
65.5°F
(18.6°C)
63.4°F
(17.4°C)
2.1°F
(1.2°C)
56th Coolest
Coolest since:
1992
4th Warmest
Warmest since:
2010
Ties: 1987
Mar–Sep 1991
7-Month
61.7°F
(16.5°C)
59.4°F
(15.2°C)
2.3°F
(1.3°C)
56th Coolest
Coolest since:
1965
4th Warmest
Warmest to Date
2012
Ties: 2016
Feb–Sep 1991
8-Month
57.7°F
(14.3°C)
55.3°F
(12.9°C)
2.4°F
(1.4°C)
56th Coolest
Coolest since:
1965, 1978
4th Warmest
Warmest since:
2012
Ties: 1987, 2016
Jan–Sep 1991
9-Month
53.8°F
(12.1°C)
51.9°F
(11.1°C)
1.9°F
(1.0°C)
53rd Coolest
Coolest since:
1978
7th Warmest
Warmest since:
2012
Dec 1990–Sep 1991
10-Month
51.5°F
(10.8°C)
49.6°F
(9.8°C)
1.9°F
(1.0°C)
54th Coolest
Coolest since:
1978
6th Warmest
Warmest since:
2012
Nov 1990–Sep 1991
11-Month
50.8°F
(10.4°C)
48.7°F
(9.3°C)
2.1°F
(1.1°C)
53rd Coolest
Coolest since:
1978
6th Warmest
Warmest to Date
2012
Ties: 2017
Oct 1990–Sep 1991
12-Month
50.8°F
(10.4°C)
48.9°F
(9.4°C)
1.9°F
(1.0°C)
52nd Coolest
Coolest since:
1978
7th Warmest
Warmest to Date
2012
Ties: 1999
Apr 1990–Sep 1991
18-Month
54.7°F
(12.6°C)
53.7°F
(12.1°C)
1.0°F
(0.5°C)
48th Coolest
Coolest since:
1979
11th Warmest
Warmest to Date
2012
Ties: 2010, 2021
Oct 1989–Sep 1991
24-Month
49.5°F
(9.7°C)
48.8°F
(9.3°C)
0.7°F
(0.4°C)
42nd Coolest
Coolest since:
1979
16th Warmest
Warmest since:
2017
Oct 1988–Sep 1991
36-Month
48.8°F
(9.3°C)
48.8°F
(9.3°C)
0.0°F
(0.0°C)
32nd Coolest
Coolest since:
1979
25th Warmest
Warmest since:
2012
Ties: 1989, 2003
Oct 1987–Sep 1991
48-Month
48.8°F
(9.3°C)
48.8°F
(9.3°C)
0.0°F
(0.0°C)
31st Coolest
Coolest since:
1980
25th Warmest
Warmest since:
2013
Ties: 1998, 2016
Oct 1986–Sep 1991
60-Month
49.1°F
(9.5°C)
48.7°F
(9.3°C)
0.4°F
(0.2°C)
34th Coolest
Coolest since:
1981, 1982
21st Warmest
Warmest to Date
2002
Ties: 2004, 2007, 2015

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