Colorado, Average Temperature Rankings, December 2017
1901-2000
Degrees Fahrenheit
1
30.1
25.2
4.9
119
10
1909
1980
2016
2010
top-tenth
2
35.7
29.4
6.3
127
2
1972
2021
2016
2017
top-tenth
3
39.4
35.1
4.3
127
2
1898
2021
2016
2017
top-tenth
4
44.3
40.7
3.6
126
3
1898
2021
2016
1933
top-tenth
5
48.4
45.6
2.8
126
3
1898
2021
2016
1933
top-tenth
6
51.9
49.1
2.8
126
3
1898,1912
2021
2016
1933
top-tenth
7
53.7
50.9
2.8
124
5
1912
2021
2015
2016
top-tenth
8
53.5
51.0
2.5
125
4
1912
2021
2016
2016
top-tenth
1934,2016
9
52.4
50.0
2.4
123
6
1912
2021
2016
2016
top-tenth
1954,1963,2016
10
51.4
48.4
3.0
126
3
1912
2012
2016
2012
top-tenth
1934
11
50.0
46.5
3.5
128
1
1912
2012,2017
2016
2012
highest
2012
12
47.9
44.6
3.3
126
3
1912
2012
2016
2012
top-tenth
18
49.2
46.1
3.1
126
2
1912
1934
2016
1934
top-tenth
24
47.6
44.6
3.0
127
1
1913
2017
2016
2017
highest
36
47.6
44.6
3.0
126
1
1913,1914
2017
2016
2017
highest
48
47.2
44.6
2.6
124
2
1915
2018
2016
2017
top-tenth
60
46.8
44.6
2.2
120
5
1916
2018
2016
2016
top-tenth
2016