Contiguous U.S. September 1898 Minimum Temperature Rankings
1901-2000
Degrees Fahrenheit
1
52.23
51.90
0.33
66
64
1918
2019
1896
1897
normal
1972
2
56.11
55.48
0.63
82
48
1974
2019
1897
1898
normal
3
57.51
57.16
0.35
72
58
1924
2022
1897
1898
normal
1922
4
57.30
56.78
0.52
81
49
1903
2021
1897
1898
normal
1996
5
55.40
54.91
0.49
82
48
1907,1924
2018
1897
1896
normal
6
52.51
52.20
0.31
70
60
1907
2018
1897
1896
normal
7
49.26
49.02
0.24
70
60
1917
2012
1897
1898
normal
8
46.10
45.75
0.35
78
52
1917
2012
1897
1898
normal
9
43.26
42.86
0.40
79
51
1917
2012
1897
1896
normal
1977
10
41.02
40.84
0.18
73
56
1917
2016
1897
1896
normal
1988
11
39.97
39.92
0.05
68
61
1917
2016
1897
1898
normal
1996
12
40.19
40.04
0.15
68
61
1917
2016
1897
1898
normal
1988
18
44.19
44.09
0.10
64
65
1917
2016
1897
1898
normal
24
39.96
40.04
-0.08
53
75
1918
2017
1897
1898
normal
36
39.87
40.02
-0.15
46
81
1918
2017,2018
1898
1898
normal
48
-99
40.01
-99
-99
-99
1918
2018
normal
60
-99
40.00
-99
-99
-99
1920
2019,2020
normal