Boise, Idaho January 1999 Average Temperature Rankings
1991-2020
Degrees Fahrenheit
1
35.6
32.4
3.2
70
16
1949
1953
1997
1998
top-third
2
33.3
32.1
1.2
55
30
1949
1978
1993
1998
normal
2000,2018
3
36.8
34.9
1.9
70
15
1949
1978
1995
1998
top-third
1974,1981,2018
4
40.6
39.4
1.2
68
17
1986
1978
1995
1998
top-third
2016,2022
5
46.5
44.8
1.7
78
7
1986
2024
1997
1998
top-tenth
2000,2021
6
51.6
50.0
1.6
82
3
1986
2024
1998
1998
top-tenth
1998,2002,2021
7
55.6
53.9
1.7
83
2
1949
2024
1998
1999
top-tenth
8
56.6
55.7
0.9
76
9
1949
2024
1998
1978
top-third
9
56.6
56.1
0.5
69
16
1949
2024
1997
1998
top-third
1995
10
55.9
55.6
0.3
66
19
1949
2024
1997
1998
top-third
1953,2005,2020
11
54.9
54.7
0.2
67
18
1949
2016
1997
1998
top-third
1941
12
53.7
53.3
0.4
70
15
1949
2016
1997
1998
top-third
2013
18
53.0
52.2
0.8
80
4
1986
2016
1998
1999
top-tenth
24
53.8
53.2
0.6
79
5
1986
2016
1998
1999
top-tenth
2018,2023,2024
36
53.6
53.2
0.4
74
9
1986
2017,2018
1998
1999
top-third
2004,2015,2021
48
53.5
53.2
0.3
70
12
1986
2018
1997
1998
top-third
60
53.6
53.2
0.4
71
10
1986
2019
1998
1999
top-third