Colorado December 2015 Average Temperature Rankings
1901-2000
Degrees Fahrenheit
1
25.8
25.2
0.6
61
69
1909
1980
2013
2014
normal
1907,1925,1973
2
30.2
29.4
0.8
77
53
1972
2021
2013
2014
normal
1955,1963,1986,1989,2007
3
37.3
35.1
2.2
106
24
1898
2021
2014
2012
top-third
1954,2005,2012
4
43.6
40.7
2.9
122
8
1898
2021
2014
2010
top-tenth
5
48.3
45.6
2.7
125
5
1898
2021
2014
2010
top-tenth
2010,2016
6
51.3
49.1
2.2
115
15
1898,1912
2021
2014
2012
top-third
1954
7
53.3
50.9
2.4
120
10
1912
2021
2014
2012
top-tenth
8
52.8
51.0
1.8
110
20
1912
2021
2014
2012
top-third
1958,1980,1998
9
51.9
50.0
1.9
112
18
1912
2021
2014
2012
top-third
1994,2022
10
50.8
48.4
2.4
122
8
1912
2012
2014
2012
top-tenth
2018
11
49.1
46.5
2.6
124
6
1912
2012,2017
2014
2012
top-tenth
2020
12
47.4
44.6
2.8
125
5
1912
2012
2014
2012
top-tenth
1954
18
48.5
46.1
2.4
120
9
1912
1934
2014
2012
top-tenth
24
46.8
44.6
2.2
122
7
1913
2017
2014
2012
top-tenth
2000,2022
36
46.2
44.6
1.6
108
20
1913,1914
2017
2011
2014
top-third
1935,1936
48
46.7
44.6
2.1
121
6
1915
2018
2014
2003
top-tenth
2001,2003,2023
60
46.5
44.6
1.9
115
11
1916
2018
2014
2007
top-tenth
2005,2007