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Boise Weather in 1940

Historical record of Boise, Idaho weather for the year 1940 based on NOAA data.
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1940 Boise Weather Extremes
Highest temperature 109 °F June 19
Lowest temperature 9 °F December 15
Highest daily low 72 °F July 15
Lowest daily high 26 °F December 15
Most daily precipitation 0.8 inches March 31
Most daily snow 2.0 inches January 24
Total annual precipitation 13.8 inches -
Total annual snow 9.7 inches -
January 1940 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
51 31 0.09 0.0
51 38 0.50 0.0
50 39 0.04 0.0
43 37 0.25 0.0
42 28 0.00 0.0
37 22 0.00 0.0
38 27 0.00 0.0
43 32 0.18 0.4
49 34 0.19 0.0
40 29 0.05 0.0
36 24 0.00 0.0
34 24 0.01 0.1
35 20 0.00 0.0
37 26 0.00 0.0
38 21 0.00 0.0
42 20 0.00 0.0
39 22 0.00 0.0
30 16 0.00 0.0
28 16 0.00 0.0
32 22 0.00 0.0
32 20 0.00 0.0
33 24 0.00 0.0
33 24 0.02 0.0
30 24 0.15 2.0
32 23 0.11 1.0
48 28 0.11 0.0
52 33 0.14 0.0
49 29 0.00 0.0
48 28 0.00 0.0
46 29 0.00 0.0
35 25 0.00 0.0
February 1940 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
44 21 0.00 0.0
38 31 0.00 0.0
52 30 0.20 0.0
49 32 0.01 0.0
48 32 0.02 0.0
50 39 0.14 0.0
43 34 0.00 0.0
45 29 0.00 0.0
51 36 0.02 0.0
48 31 0.16 0.0
41 30 0.02 0.0
41 23 0.00 0.0
39 32 0.16 1.5
40 32 0.22 0.0
42 28 0.00 0.0
42 28 0.00 0.0
44 32 0.11 0.0
40 30 0.03 0.0
44 25 0.00 0.0
43 23 0.00 0.0
42 23 0.00 0.0
42 31 0.13 0.0
50 30 0.07 0.0
49 32 0.01 0.0
49 37 0.13 0.0
53 41 0.03 0.0
61 41 0.21 0.0
63 45 0.01 0.0
50 36 0.10 0.0
March 1940 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
56 32 0.00 0.0
50 35 0.20 0.0
52 28 0.00 0.0
54 34 0.00 0.0
48 33 0.04 0.0
52 29 0.00 0.0
59 40 0.07 0.0
49 32 0.08 0.0
51 29 0.00 0.0
41 30 0.02 0.0
46 26 0.00 0.0
46 24 0.00 0.0
54 30 0.00 0.0
62 33 0.00 0.0
62 41 0.00 0.0
56 38 0.00 0.0
58 32 0.00 0.0
58 28 0.00 0.0
62 29 0.00 0.0
64 34 0.00 0.0
68 33 0.00 0.0
70 36 0.00 0.0
70 36 0.00 0.0
67 44 0.00 0.0
60 48 0.27 0.0
53 45 0.61 0.0
54 38 0.00 0.0
54 37 0.05 0.0
54 40 0.04 0.0
60 47 0.13 0.0
52 43 0.75 0.0
April 1940 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
55 40 0.03 0.0
53 34 0.00 0.0
60 35 0.00 0.0
54 35 0.33 0.0
52 38 0.14 0.0
58 32 0.00 0.0
54 42 0.11 0.0
62 42 0.03 0.0
55 37 0.16 0.0
57 31 0.00 0.0
63 35 0.00 0.0
75 46 0.00 0.0
78 45 0.00 0.0
64 44 0.00 0.0
55 41 0.00 0.0
62 37 0.00 0.0
69 35 0.00 0.0
70 44 0.00 0.0
77 44 0.00 0.0
60 43 0.03 0.0
62 32 0.00 0.0
71 39 0.00 0.0
63 42 0.00 0.0
64 32 0.00 0.0
61 48 0.20 0.0
54 45 0.05 0.0
61 42 0.18 0.0
55 39 0.43 0.0
52 37 0.11 0.0
57 35 0.00 0.0
May 1940 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
76 41 0.00 0.0
80 49 0.06 0.0
69 37 0.00 0.0
60 44 0.00 0.0
60 35 0.00 0.0
64 36 0.00 0.0
70 36 0.00 0.0
78 42 0.00 0.0
86 46 0.00 0.0
92 55 0.01 0.0
79 55 0.00 0.0
78 50 0.02 0.0
71 37 0.00 0.0
74 48 0.00 0.0
73 42 0.00 0.0
72 40 0.00 0.0
73 45 0.00 0.0
76 39 0.00 0.0
81 51 0.00 0.0
75 45 0.00 0.0
80 54 0.00 0.0
86 52 0.00 0.0
86 54 0.00 0.0
88 54 0.00 0.0
73 53 0.00 0.0
69 40 0.00 0.0
75 37 0.00 0.0
76 51 0.00 0.0
82 55 0.00 0.0
81 56 0.00 0.0
81 57 0.00 0.0
June 1940 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
73 50 0.00 0.0
73 46 0.00 0.0
73 46 0.00 0.0
60 52 0.08 0.0
74 44 0.00 0.0
78 46 0.00 0.0
65 45 0.00 0.0
70 40 0.00 0.0
80 45 0.00 0.0
88 54 0.00 0.0
97 60 0.00 0.0
102 71 0.00 0.0
92 57 0.00 0.0
89 55 0.00 0.0
94 54 0.00 0.0
95 54 0.00 0.0
97 59 0.00 0.0
100 56 0.00 0.0
109 71 0.00 0.0
86 60 0.00 0.0
88 48 0.00 0.0
81 51 0.00 0.0
84 49 0.00 0.0
94 55 0.00 0.0
95 64 0.00 0.0
86 60 0.00 0.0
80 51 0.00 0.0
89 47 0.00 0.0
93 62 0.00 0.0
76 62 0.00 0.0
July 1940 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
88 61 0.00 0.0
95 66 0.00 0.0
90 65 0.23 0.0
93 60 0.00 0.0
92 57 0.00 0.0
89 55 0.00 0.0
94 62 0.00 0.0
92 67 0.00 0.0
94 69 0.01 0.0
94 58 0.00 0.0
99 61 0.00 0.0
97 68 0.00 0.0
90 59 0.00 0.0
95 57 0.00 0.0
93 72 0.00 0.0
90 65 0.00 0.0
96 58 0.00 0.0
90 52 0.00 0.0
95 54 0.00 0.0
87 59 0.00 0.0
90 53 0.00 0.0
96 56 0.00 0.0
95 61 0.00 0.0
90 58 0.09 0.0
83 52 0.00 0.0
69 58 0.03 0.0
77 53 0.00 0.0
85 50 0.00 0.0
89 55 0.00 0.0
92 57 0.00 0.0
90 56 0.00 0.0
August 1940 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
87 54 0.00 0.0
84 54 0.00 0.0
91 52 0.00 0.0
89 53 0.00 0.0
89 52 0.00 0.0
92 63 0.00 0.0
96 63 0.00 0.0
100 65 0.00 0.0
96 64 0.00 0.0
95 54 0.00 0.0
99 60 0.00 0.0
100 68 0.00 0.0
90 56 0.00 0.0
87 51 0.00 0.0
85 48 0.00 0.0
87 49 0.00 0.0
92 54 0.00 0.0
96 58 0.00 0.0
98 63 0.00 0.0
98 69 0.00 0.0
90 56 0.00 0.0
87 56 0.00 0.0
89 55 0.00 0.0
82 58 0.01 0.0
86 57 0.00 0.0
90 60 0.00 0.0
87 58 0.00 0.0
79 53 0.00 0.0
86 48 0.00 0.0
99 65 0.00 0.0
92 65 0.00 0.0
September 1940 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
93 66 0.00 0.0
86 70 0.00 0.0
80 59 0.00 0.0
68 46 0.23 0.0
67 43 0.00 0.0
77 45 0.00 0.0
91 57 0.20 0.0
85 57 0.00 0.0
90 63 0.31 0.0
93 59 0.00 0.0
93 67 0.00 0.0
86 62 0.04 0.0
64 53 0.29 0.0
73 46 0.00 0.0
73 48 0.00 0.0
73 48 0.00 0.0
72 49 0.00 0.0
61 51 0.19 0.0
56 48 0.14 0.0
64 43 0.00 0.0
70 48 0.02 0.0
73 45 0.00 0.0
74 47 0.00 0.0
74 52 0.00 0.0
75 55 0.00 0.0
84 53 0.00 0.0
76 49 0.00 0.0
54 38 0.08 0.0
52 43 0.28 0.0
55 46 0.07 0.0
October 1940 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
63 45 0.07 0.0
58 46 0.07 0.0
55 39 0.00 0.0
59 41 0.00 0.0
64 35 0.00 0.0
75 44 0.00 0.0
74 45 0.00 0.0
71 43 0.00 0.0
67 40 0.00 0.0
71 43 0.00 0.0
75 46 0.00 0.0
78 46 0.00 0.0
69 42 0.00 0.0
73 44 0.00 0.0
73 42 0.00 0.0
75 41 0.00 0.0
77 46 0.00 0.0
78 46 0.00 0.0
75 46 0.00 0.0
70 45 0.00 0.0
64 44 0.01 0.0
69 43 0.00 0.0
70 47 0.00 0.0
65 50 0.62 0.0
57 44 0.02 0.0
52 44 0.29 0.0
50 37 0.08 0.0
54 30 0.00 0.0
52 41 0.22 0.0
54 39 0.22 0.0
58 39 0.22 0.0
November 1940 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
58 43 0.16 0.0
55 36 0.37 0.0
44 30 0.00 0.0
45 26 0.00 0.0
46 33 0.00 0.0
51 38 0.00 0.0
59 40 0.08 0.0
56 36 0.00 0.0
42 28 0.11 0.0
38 25 0.04 0.2
39 27 0.06 1.9
36 20 0.00 0.0
40 18 0.00 0.0
46 24 0.00 0.0
47 25 0.00 0.0
47 27 0.00 0.0
49 30 0.01 0.0
43 27 0.05 0.0
40 21 0.00 0.0
36 25 0.05 0.0
32 22 0.01 1.0
35 15 0.00 0.0
37 22 0.00 0.0
34 24 0.03 0.3
34 24 0.00 0.0
35 30 0.00 0.0
35 26 0.10 1.3
37 31 0.09 0.0
50 33 0.16 0.0
49 29 0.00 0.0
December 1940 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
44 31 0.00 0.0
50 30 0.00 0.0
42 31 0.00 0.0
46 28 0.00 0.0
54 24 0.00 0.0
50 28 0.00 0.0
45 29 0.00 0.0
46 27 0.00 0.0
43 24 0.00 0.0
37 19 0.00 0.0
32 16 0.00 0.0
32 12 0.00 0.0
31 9 0.00 0.0
29 9 0.00 0.0
26 9 0.00 0.0
34 11 0.00 0.0
44 30 0.00 0.0
44 37 0.04 0.0
50 35 0.00 0.0
55 41 0.00 0.0
54 37 0.03 0.0
50 41 0.08 0.0
52 40 0.05 0.0
50 38 0.01 0.0
44 34 0.01 0.0
49 37 0.07 0.0
48 29 0.16 0.0
44 28 0.00 0.0
39 30 0.00 0.0
38 31 0.09 0.0
35 24 0.00 0.0
Weather Station Details
Years Station Coordinates
1940–2022 location