Boise Weather in 1918

Historical record of Boise, Idaho weather for the year 1918 based on NOAA data.
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1918 Boise Weather Extremes
Highest temperature 104 °F July 29
Lowest temperature -7 °F December 31
Highest daily low 70 °F July 31
Lowest daily high 18 °F December 31
Most daily precipitation 1.2 inches September 23
Most daily snow 5.5 inches March 8
Total annual precipitation 12.9 inches -
Total annual snow 19.2 inches -
Highest Temperatures in Boise in 1918
Rank Temperature Date
1 104 °F Jul 29
2 102 °F Jul 17
3 100 °F Jul 31
3 100 °F Jul 18
3 100 °F Jun 20
3 100 °F Jun 13
3 100 °F Jun 12
8 98 °F Jul 22
8 98 °F Jul 16
10 97 °F Aug 1
10 97 °F Jul 1
10 97 °F Jun 11
10 97 °F Jun 10
10 97 °F Jun 9
Lowest Temperatures in Boise in 1918
Rank Temperature Date
1 -7 °F December 31
2 2 °F December 26
3 3 °F December 25
3 3 °F December 24
5 5 °F December 28
6 7 °F December 30
6 7 °F December 23
6 7 °F January 31
9 8 °F December 22
10 12 °F December 29
10 12 °F February 1
January 1918 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
53 30 0.00 0.0
50 29 0.00 0.0
42 25 0.00 0.0
41 27 0.23 0.0
47 30 0.02 0.0
47 29 0.00 0.0
50 33 0.21 0.0
45 30 0.00 0.0
39 27 0.00 0.0
29 15 0.00 0.0
30 22 0.16 1.5
34 26 0.40 0.0
40 22 0.00 0.0
38 28 0.38 3.5
39 26 0.12 0.0
36 31 0.21 0.0
41 31 0.03 0.0
44 30 0.08 0.0
40 26 0.00 0.0
35 22 0.00 0.0
36 24 0.00 0.0
37 21 0.00 0.0
46 23 0.00 0.0
50 30 0.00 0.0
44 32 0.10 0.0
38 26 0.01 0.1
40 24 0.00 0.0
38 28 0.00 0.0
43 27 0.02 0.0
38 21 0.08 0.5
27 7 0.00 0.0
February 1918 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
32 12 0.00 0.0
34 16 0.04 0.2
48 25 0.00 0.0
44 34 0.00 0.0
56 35 0.00 0.0
61 35 0.02 0.0
49 33 0.02 0.0
47 22 0.00 0.0
51 28 0.00 0.0
54 26 0.00 0.0
49 27 0.00 0.0
44 30 0.10 0.0
44 28 0.12 0.3
41 21 0.20 2.0
37 16 0.00 0.0
38 26 0.15 1.0
43 31 0.29 1.5
44 21 0.00 0.0
39 17 0.00 0.0
38 18 0.00 0.0
44 25 0.00 0.0
42 27 0.00 0.0
47 26 0.09 0.0
42 28 0.04 0.3
40 19 0.00 0.0
45 32 0.00 0.0
43 23 0.00 0.0
47 22 0.00 0.0
March 1918 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
57 25 0.00 0.0
56 23 0.00 n/a
60 28 0.00 0.0
54 26 0.02 0.2
40 18 0.00 0.0
46 15 0.00 0.0
48 21 0.00 0.0
45 30 0.74 5.5
44 31 0.00 0.0
53 33 0.00 0.0
61 36 0.25 0.0
44 36 0.05 0.0
46 32 0.07 0.0
50 22 0.00 0.0
58 30 0.00 0.0
63 31 0.00 0.0
61 37 0.00 0.0
60 44 0.21 0.0
59 42 0.01 0.0
60 32 0.00 0.0
66 31 0.00 0.0
67 41 0.00 0.0
66 40 0.00 0.0
71 43 0.00 0.0
65 44 0.04 0.0
56 42 0.45 0.0
54 38 0.22 0.0
61 29 0.00 0.0
67 31 0.00 0.0
68 36 0.00 0.0
65 36 0.00 0.0
April 1918 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
52 29 0.00 0.0
46 27 0.00 0.0
44 18 0.00 0.0
45 20 0.00 0.0
58 20 0.00 0.0
65 29 0.00 0.0
68 34 0.00 0.0
75 44 0.00 0.0
70 48 0.36 0.0
63 37 0.00 0.0
68 34 0.00 0.0
71 36 0.00 0.0
57 33 0.16 0.0
51 26 0.06 0.0
50 25 0.00 0.0
57 27 0.00 0.0
56 33 0.00 0.0
61 27 0.00 0.0
68 27 0.00 0.0
67 33 0.00 0.0
73 34 0.00 0.0
76 33 0.00 0.0
73 40 0.00 0.0
74 35 0.00 0.0
68 30 0.00 0.0
60 35 0.00 0.0
65 28 0.00 0.0
70 31 0.00 0.0
78 36 0.00 0.0
79 38 0.00 0.0
May 1918 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
77 41 0.00 0.0
87 37 0.00 0.0
86 45 0.00 0.0
80 48 0.00 0.0
68 41 0.00 0.0
66 35 0.00 0.0
73 34 0.00 0.0
67 42 0.08 0.0
62 29 0.00 0.0
63 33 0.00 0.0
71 36 0.00 0.0
79 36 0.00 0.0
83 38 0.00 0.0
76 53 0.00 0.0
63 33 0.00 0.0
64 45 0.00 0.0
71 38 0.00 0.0
65 43 0.00 0.0
64 31 0.00 0.0
67 38 0.00 0.0
64 27 0.00 0.0
74 28 0.00 0.0
72 35 0.00 0.0
65 35 0.00 0.0
65 27 0.00 0.0
67 36 0.00 0.0
56 40 0.80 0.0
71 44 0.03 0.0
77 40 0.00 0.0
79 43 0.00 0.0
66 41 0.00 0.0
June 1918 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
69 33 0.00 0.0
77 36 0.00 0.0
83 42 0.00 0.0
91 49 0.00 0.0
90 51 0.00 0.0
91 56 0.00 0.0
94 54 0.00 0.0
93 58 0.00 0.0
97 59 0.00 0.0
97 56 0.00 0.0
97 58 0.00 0.0
100 64 0.00 0.0
100 60 0.16 0.0
84 56 0.00 0.0
89 47 0.00 0.0
88 60 0.00 0.0
93 63 0.00 0.0
92 59 0.04 0.0
96 57 0.00 0.0
100 62 0.00 0.0
88 68 0.01 0.0
91 62 0.00 0.0
93 62 0.33 0.0
91 57 0.00 0.0
88 54 0.00 0.0
88 46 0.00 0.0
90 50 0.00 0.0
76 48 0.00 0.0
82 43 0.00 0.0
90 45 0.00 0.0
July 1918 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
97 51 0.00 0.0
94 51 0.00 0.0
81 55 0.00 0.0
90 40 0.00 0.0
95 54 0.00 0.0
90 49 0.00 0.0
96 48 0.00 0.0
91 56 0.06 0.0
92 52 0.21 0.0
85 53 0.00 0.0
95 52 0.00 0.0
93 54 0.00 0.0
94 53 0.00 0.0
91 55 0.00 0.0
96 64 0.00 0.0
98 59 0.00 0.0
102 61 0.00 0.0
100 66 0.00 0.0
94 65 0.00 0.0
87 53 0.00 0.0
84 49 0.00 0.0
98 52 0.00 0.0
85 57 0.00 0.0
79 48 0.00 0.0
83 52 0.02 0.0
80 56 0.00 0.0
81 41 0.00 0.0
94 43 0.00 0.0
104 49 0.00 0.0
94 58 0.00 0.0
100 70 0.00 0.0
August 1918 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
97 62 0.18 0.0
95 60 0.00 0.0
92 57 0.00 0.0
90 51 0.00 0.0
81 53 0.00 0.0
85 47 0.00 0.0
92 50 0.00 0.0
87 51 0.00 0.0
79 47 0.00 0.0
88 48 0.00 0.0
84 55 0.00 0.0
80 42 0.00 0.0
90 43 0.00 0.0
85 61 0.02 0.0
76 61 0.00 0.0
71 52 0.06 0.0
70 51 0.49 0.0
78 42 0.00 0.0
72 48 0.02 0.0
67 35 0.00 0.0
73 39 0.00 0.0
78 43 0.00 0.0
85 46 0.00 0.0
93 48 0.00 0.0
96 51 0.00 0.0
95 56 0.00 0.0
87 52 0.00 0.0
86 38 0.00 0.0
86 41 0.00 0.0
91 45 0.00 0.0
94 43 0.00 0.0
September 1918 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
91 50 0.00 0.0
80 50 0.00 0.0
81 42 0.00 0.0
82 39 0.00 0.0
84 45 0.00 0.0
88 46 0.00 0.0
91 56 0.00 0.0
76 52 0.40 0.0
75 50 0.06 0.0
76 48 0.00 0.0
86 43 0.00 0.0
74 56 0.00 0.0
72 58 0.02 0.0
69 58 0.28 0.0
77 58 0.15 0.0
81 53 0.00 0.0
86 46 0.00 0.0
84 48 0.00 0.0
89 47 0.00 0.0
93 46 0.00 0.0
87 52 0.00 0.0
74 54 0.10 0.0
58 50 1.15 0.0
67 43 0.00 0.0
72 40 0.00 0.0
76 43 0.00 0.0
81 44 0.00 0.0
88 54 0.00 0.0
72 56 0.09 0.0
73 46 0.20 0.0
October 1918 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
77 44 0.00 0.0
75 46 0.00 0.0
71 54 0.08 0.0
74 46 0.26 0.0
70 56 0.06 0.0
62 45 0.39 0.0
65 38 0.00 0.0
70 38 0.00 0.0
72 38 0.00 0.0
71 41 0.00 0.0
76 43 0.00 0.0
78 42 0.00 0.0
80 41 0.00 0.0
79 51 0.00 0.0
67 55 0.33 0.0
61 47 0.27 0.0
58 36 0.00 0.0
60 34 0.00 0.0
62 33 0.00 0.0
68 36 0.00 0.0
63 35 0.00 0.0
59 36 0.00 0.0
50 25 0.00 0.0
56 31 0.00 0.0
53 30 0.00 0.0
57 33 0.00 0.0
52 38 0.30 0.0
58 42 0.00 0.0
59 42 0.00 0.0
63 30 0.00 0.0
60 34 0.00 0.0
November 1918 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
62 34 0.00 0.0
63 29 0.00 0.0
53 46 0.00 0.0
51 36 0.00 0.0
47 31 0.00 0.0
51 29 0.00 0.0
48 22 0.00 0.0
53 22 0.00 0.0
49 35 0.01 0.0
54 34 0.00 0.0
56 26 0.01 0.0
57 34 0.00 0.0
51 25 0.00 0.0
55 25 0.00 0.0
52 35 0.12 0.0
51 34 0.00 0.0
56 31 0.00 0.0
51 31 0.00 0.0
51 28 0.00 0.0
51 24 0.00 0.0
50 23 0.00 0.0
44 23 0.00 0.0
47 21 0.00 0.0
35 28 0.00 0.0
39 17 0.00 0.0
41 16 0.00 0.0
38 22 0.00 0.0
37 19 0.00 0.0
44 22 0.00 0.0
46 20 0.00 0.0
December 1918 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
41 17 0.00 0.0
36 26 0.00 0.0
48 21 0.00 0.0
47 26 0.00 0.0
43 30 0.00 0.0
55 29 0.00 0.0
45 23 0.00 0.0
50 26 0.00 0.0
45 32 0.00 0.0
44 19 0.00 0.0
36 27 0.01 0.1
40 21 0.00 0.0
48 33 0.02 0.0
52 31 0.00 0.0
44 33 0.08 0.0
41 21 0.00 0.0
36 17 0.00 0.0
28 19 0.00 0.0
35 25 0.00 0.0
33 25 0.15 2.0
31 15 0.00 0.0
30 8 0.00 0.0
28 7 0.00 0.0
23 3 0.00 0.0
25 3 0.00 0.0
21 2 0.00 0.0
24 13 0.00 0.0
22 5 0.00 0.0
26 12 0.04 0.5
31 7 0.00 0.0
18 -7 0.00 0.0
Weather Station Details
Years Station Coordinates
1940–2024 location
1911–1939 Meridian 1 W location