Contiguous U.S., Average Temperature Rankings, December 1918
1901-2000
Degrees Fahrenheit
1
34.45
32.68
1.77
89
40
1983
2021
1917
1907
top-third
2
37.48
37.19
0.29
60
69
2000
2021
1917
1915
normal
3
43.71
42.83
0.88
92
37
1898
2021
1917
1915
top-third
1940,1950
4
48.26
48.34
-0.08
50
79
1976
2021
1917
1915
normal
5
53.11
53.09
0.02
59
70
1976
2021
1917
1915
normal
6
56.33
56.51
-0.18
47
82
1976
2021
1917
1913
normal
7
58.45
58.22
0.23
70
59
1976
2021
1917
1901
normal
8
58.74
58.47
0.27
72
57
1976
2021
1917
1901
normal
9
57.66
57.64
0.02
58
71
1917
2021
1917
1913
normal
10
56.47
56.03
0.44
80
49
1917
2012
1917
1910
normal
1980
11
54.41
54.01
0.40
81
48
1917
2012
1917
1910
normal
1936
12
51.87
52.02
-0.15
50
79
1917
2012
1917
1911
normal
1901,1961
18
53.10
53.52
-0.42
25
103
1917
2012,2016
1917
1914
bottom-third
1906,1972
24
50.97
52.02
-1.05
5
123
1917
2017
1917
1916
bottom-tenth
36
50.93
52.01
-1.08
2
125
1917
2017
1917
1916
bottom-tenth
1905
48
51.06
52.00
-0.94
2
124
1917
2018
1917
1916
bottom-tenth
60
51.21
51.99
-0.78
6
119
1920
2019,2020
1917
1915
bottom-tenth