Montana September 1980 Average Temperature Rankings
1901-2000
Degrees Fahrenheit
1
54.7
53.8
0.9
71
59
1965
1998
1977
1979
normal
1930,1943
2
57.3
59.0
-1.7
25
105
1965
2022
1977
1979
bottom-third
1968
3
60.2
61.2
-1.0
30
100
1912
2022
1977
1979
bottom-third
1916
4
59.9
60.5
-0.6
37
93
1993
2021
1978
1979
bottom-third
1978,2010
5
58.6
58.4
0.2
62
68
1907
1936
1978
1979
normal
1914,1920,1971,1983
6
56.5
55.5
1.0
95
35
1907
1936
1979
1976
top-third
1963,1976,1991
7
52.5
51.7
0.8
84
46
1965
2012
1979
1977
normal
8
48.9
47.9
1.0
87
43
1899
2012,2016
1979
1977
top-third
1921,1986
9
44.9
44.5
0.4
71
59
1899
2012
1979
1977
normal
1906
10
43.2
42.1
1.1
85
44
1950
2012
1979
1977
normal
11
41.7
41.0
0.7
84
45
1899
2012
1979
1977
normal
1995,2002,2004
12
42.1
41.2
0.9
86
43
1899
2012
1979
1977
top-third
18
46.6
45.9
0.7
84
45
1917
2016
1979
1977
normal
1901
24
40.2
41.1
-0.9
24
104
1917
2016
1979
1978
bottom-third
1937,1956,1969,1970
36
40.0
41.1
-1.1
12
115
1951
2017
1952
1979
bottom-tenth
1898
48
40.6
41.1
-0.5
28
98
1952
2007,2017,2018
1973
1979
bottom-third
1906,1925,1973
60
41.0
41.1
-0.1
50
75
1952
2016
1979
1978
normal
1925,1926,1927,1932,1966,1970,1976,1986