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Grand Rapids, Michigan

Average Temperature Rankings, September 1977

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Period Value 1991-2020
Mean
Anomaly Rank
(1963-2022)
Warmest/Coolest
Since
Record
September 1977
1-Month
63.1°F
(17.3°C)
63.5°F
(17.5°C)
-0.5°F
(-0.2°C)
33rd Coolest
Coolest since:
1993
27th Warmest
Warmest since:
2005
Aug–Sep 1977
2-Month
65.5°F
(18.6°C)
67.3°F
(19.6°C)
-1.8°F
(-1.0°C)
14th Coolest
Coolest since:
1992
46th Warmest
Warmest since:
2005
Jul–Sep 1977
3-Month
68.4°F
(20.2°C)
69.1°F
(20.6°C)
-0.7°F
(-0.4°C)
28th Coolest
Coolest since:
1992
32nd Warmest
Warmest since:
2005, 2016
Ties: 1984, 1996
Jun–Sep 1977
4-Month
67.5°F
(19.7°C)
69.1°F
(20.6°C)
-1.6°F
(-0.9°C)
16th Coolest
Coolest since:
1992
44th Warmest
Warmest since:
2005
Ties: 1964, 1979
May–Sep 1977
5-Month
67.2°F
(19.6°C)
67.1°F
(19.5°C)
0.1°F
(0.1°C)
41st Coolest
Coolest since:
1992
19th Warmest
Warmest since:
2018
Ties: 1995, 2006
Apr–Sep 1977
6-Month
64.7°F
(18.2°C)
63.8°F
(17.7°C)
0.9°F
(0.5°C)
47th Coolest
Coolest since:
1992
13th Warmest
Warmest to Date
2010
Mar–Sep 1977
7-Month
61.2°F
(16.2°C)
59.8°F
(15.4°C)
1.4°F
(0.8°C)
51st Coolest
Coolest since:
1992
9th Warmest
Warmest to Date
2012
Feb–Sep 1977
8-Month
56.4°F
(13.6°C)
55.7°F
(13.2°C)
0.7°F
(0.4°C)
47th Coolest
Coolest since:
1978
13th Warmest
Warmest since:
2012
Ties: 1973, 2021
Jan–Sep 1977
9-Month
51.6°F
(10.9°C)
52.2°F
(11.2°C)
-0.6°F
(-0.3°C)
32nd Coolest
Coolest since:
1978
28th Warmest
Warmest since:
2012
Ties: 2008
Dec 1976–Sep 1977
10-Month
48.4°F
(9.1°C)
50.1°F
(10.1°C)
-1.7°F
(-1.0°C)
21st Coolest
Coolest since:
1978
39th Warmest
Warmest since:
2012
Ties: 1986, 1992, 1993
Nov 1976–Sep 1977
11-Month
46.9°F
(8.3°C)
49.1°F
(9.5°C)
-2.2°F
(-1.2°C)
10th Coolest
Coolest since:
1978
49th Warmest
Warmest since:
2012
Ties: 1997
Oct 1976–Sep 1977
12-Month
46.9°F
(8.3°C)
49.3°F
(9.6°C)
-2.4°F
(-1.3°C)
9th Coolest
Coolest since:
1978
50th Warmest
Warmest since:
2012
Ties: 1970
Apr 1976–Sep 1977
18-Month
52.3°F
(11.3°C)
54.2°F
(12.3°C)
-1.9°F
(-1.0°C)
11th Coolest
Coolest since:
1979
48th Warmest
Warmest since:
2012
Ties: 1966, 1968, 2014
Oct 1975–Sep 1977
24-Month
48.3°F
(9.1°C)
49.3°F
(9.6°C)
-1.0°F
(-0.5°C)
24th Coolest
Coolest since:
1979
34th Warmest
Warmest since:
2017
Ties: 1985
Oct 1974–Sep 1977
36-Month
48.3°F
(9.1°C)
49.3°F
(9.6°C)
-1.0°F
(-0.5°C)
21st Coolest
Coolest since:
1979
36th Warmest
Warmest since:
2012
Ties: 1973
Oct 1973–Sep 1977
48-Month
48.2°F
(9.0°C)
49.3°F
(9.6°C)
-1.1°F
(-0.6°C)
16th Coolest
Coolest since:
1980
40th Warmest
Warmest since:
2013
Ties: 1974, 1983, 1994
Oct 1972–Sep 1977
60-Month
48.4°F
(9.1°C)
49.2°F
(9.6°C)
-0.8°F
(-0.5°C)
21st Coolest
Coolest since:
1982
34th Warmest
Warmest since:
2002
Ties: 1998

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