Boise Weather in 1921

Historical record of Boise, Idaho weather for the year 1921 based on NOAA data.
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1921 Boise Weather Extremes
Highest temperature 101 °F July 19
Lowest temperature 9 °F February 7
Highest daily low 70 °F August 2
Lowest daily high 28 °F January 23
Most daily precipitation 0.5 inches May 21
Most daily snow 3.0 inches February 5
Total annual precipitation 10.0 inches -
Total annual snow 23.1 inches -
January 1921 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
34 29 0.25 2.5
41 30 0.17 0.0
48 32 0.21 0.2
51 36 0.04 0.0
37 26 0.00 0.0
33 24 0.06 1.5
38 16 0.00 0.0
33 18 0.04 1.0
33 16 0.00 0.0
33 9 0.00 0.0
33 18 0.20 2.0
34 15 0.06 0.5
35 23 0.00 0.0
45 24 0.00 0.0
37 30 0.00 0.0
53 34 0.00 0.0
51 35 0.15 0.0
47 32 0.16 0.0
40 30 0.00 0.0
34 20 0.00 0.0
35 20 0.00 0.0
28 17 0.00 0.0
41 18 0.03 0.5
43 30 0.00 0.0
49 34 0.00 0.0
53 34 0.00 0.0
39 29 0.01 0.0
41 29 0.00 0.0
44 36 0.00 0.0
42 27 0.04 0.5
February 1921 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
34 28 0.05 0.5
35 25 0.08 0.8
36 29 0.14 0.0
39 28 0.00 0.0
36 26 0.24 3.0
30 12 0.00 0.0
30 9 0.00 0.0
36 23 0.00 0.0
36 30 0.25 2.0
40 32 0.14 0.0
42 32 0.00 0.0
46 30 0.00 0.0
60 28 0.00 0.0
56 33 0.00 0.0
35 22 0.12 1.0
34 25 0.00 0.0
36 18 0.00 0.0
38 17 0.00 0.0
42 26 0.01 0.1
40 26 0.14 0.0
46 30 0.04 0.0
48 23 0.00 0.0
52 28 0.00 0.0
58 29 0.00 0.0
57 26 0.00 0.0
48 29 0.00 0.0
56 28 0.00 0.0
56 30 0.00 0.0
March 1921 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
56 40 0.07 0.0
65 33 0.00 0.0
67 42 0.00 0.0
58 38 0.04 0.0
52 35 0.22 0.0
50 34 0.00 0.0
50 33 0.00 0.0
53 29 0.00 0.0
59 31 0.00 0.0
59 31 0.00 0.0
54 31 0.00 0.0
54 24 0.00 0.0
57 39 0.24 0.0
46 36 0.02 0.0
46 30 0.00 0.0
60 41 0.01 0.0
70 46 0.00 0.0
56 42 0.08 0.0
46 32 0.00 0.0
52 25 0.00 0.0
59 40 0.00 0.0
58 36 0.00 0.0
58 35 0.08 0.0
56 35 n/a 0.0
50 31 0.03 0.0
50 27 0.00 0.0
54 25 0.00 0.0
62 26 0.00 0.0
56 32 0.00 0.0
59 25 0.00 0.0
71 32 0.00 0.0
April 1921 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
70 32 0.00 0.0
77 41 0.00 0.0
49 29 0.06 0.6
44 28 0.00 0.0
51 30 0.00 0.0
53 28 0.00 0.0
52 25 0.00 0.0
59 27 0.00 0.0
66 32 0.00 0.0
68 37 0.00 0.0
66 36 0.00 0.0
66 37 0.00 0.0
60 39 0.16 0.0
48 33 0.02 0.0
52 37 0.02 0.0
55 37 0.00 0.0
63 33 0.00 0.0
66 39 0.00 0.0
61 40 0.00 0.0
58 40 0.17 0.0
62 38 0.00 0.0
62 50 0.02 0.0
60 34 0.00 0.0
50 30 0.00 0.0
53 23 0.01 0.0
58 35 0.01 0.0
61 33 0.00 0.0
63 46 0.42 0.0
60 39 0.00 0.0
62 28 0.00 0.0
May 1921 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
78 43 0.00 0.0
64 40 0.00 0.0
67 33 0.00 0.0
68 42 0.00 0.0
67 41 0.00 0.0
75 42 0.00 0.0
68 46 0.03 0.0
65 40 0.00 0.0
71 34 0.00 0.0
74 48 0.00 0.0
67 36 0.00 0.0
73 33 0.00 0.0
80 42 0.00 0.0
82 40 0.00 0.0
81 51 0.00 0.0
71 41 0.00 0.0
59 35 0.38 0.0
64 42 0.32 0.0
53 47 0.46 0.0
67 49 0.14 0.0
68 46 0.53 0.0
68 46 0.04 0.0
73 43 0.00 0.0
77 48 0.00 0.0
78 51 0.00 0.0
77 48 0.00 0.0
75 36 0.00 0.0
67 48 0.01 0.0
72 47 0.00 0.0
70 46 0.08 0.0
71 47 0.00 0.0
June 1921 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
79 52 0.00 0.0
80 46 0.00 0.0
82 53 0.00 0.0
83 52 0.00 0.0
82 49 0.00 0.0
85 51 0.00 0.0
84 52 0.00 0.0
82 56 0.04 0.0
86 50 0.00 0.0
90 52 0.00 0.0
85 56 0.00 0.0
91 50 0.00 0.0
89 53 0.00 0.0
76 47 0.00 0.0
74 43 0.00 0.0
64 43 0.13 0.0
67 46 0.01 0.0
76 41 0.00 0.0
76 51 0.00 0.0
82 46 0.00 0.0
90 52 0.00 0.0
92 55 0.00 0.0
95 62 0.00 0.0
87 66 0.01 0.0
86 51 0.00 0.0
86 56 0.00 0.0
92 53 0.00 0.0
95 56 0.00 0.0
84 62 0.00 0.0
88 52 0.00 0.0
July 1921 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
80 57 0.00 0.0
72 41 0.00 0.0
73 38 0.00 0.0
84 42 0.00 0.0
90 53 0.00 0.0
91 51 0.00 0.0
96 53 0.00 0.0
98 n/a 0.00 0.0
89 55 0.00 0.0
91 49 0.00 0.0
93 50 0.00 0.0
93 49 0.00 0.0
97 50 0.00 0.0
99 52 0.00 0.0
95 53 0.00 0.0
91 51 0.00 0.0
91 53 0.00 0.0
100 50 0.00 0.0
101 n/a 0.00 0.0
93 61 0.00 0.0
90 56 0.00 0.0
98 56 0.00 0.0
100 n/a 0.00 0.0
100 64 0.00 0.0
95 66 0.00 0.0
87 56 0.00 0.0
91 61 0.00 0.0
95 63 0.00 0.0
95 59 0.00 0.0
96 60 0.00 0.0
95 65 0.00 0.0
August 1921 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
92 66 0.00 0.0
90 70 0.00 0.0
94 64 0.00 0.0
89 59 0.00 0.0
87 55 0.00 0.0
88 56 0.00 0.0
95 64 0.00 0.0
96 59 0.00 0.0
92 56 0.00 0.0
94 55 0.00 0.0
95 59 0.00 0.0
98 62 0.00 0.0
98 58 0.00 0.0
91 54 0.07 0.0
78 54 0.00 0.0
86 50 0.00 0.0
86 60 0.00 0.0
80 53 0.00 0.0
85 44 0.00 0.0
94 46 0.00 0.0
86 51 0.00 0.0
88 49 0.00 0.0
91 53 0.00 0.0
82 50 0.00 0.0
84 46 0.00 0.0
86 52 0.00 0.0
88 55 0.00 0.0
91 54 0.00 0.0
94 59 0.00 0.0
93 53 0.00 0.0
90 54 0.00 0.0
September 1921 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
83 49 0.00 0.0
76 38 0.00 0.0
77 43 0.00 0.0
75 45 0.00 0.0
76 43 0.00 0.0
71 45 0.00 0.0
66 38 0.00 0.0
67 41 0.00 0.0
59 32 0.00 0.0
66 29 0.00 0.0
64 38 0.00 0.0
64 38 0.00 0.0
71 30 0.00 0.0
83 36 0.00 0.0
67 53 0.04 0.0
63 47 0.40 0.0
63 36 0.00 0.0
74 38 0.00 0.0
79 49 0.00 0.0
69 44 0.00 0.0
74 33 0.00 0.0
73 49 0.00 0.0
78 36 0.00 0.0
79 45 0.00 0.0
66 45 0.00 0.0
67 31 0.00 0.0
67 30 0.00 0.0
October 1921 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
68 33 0.00 0.0
67 32 0.00 0.0
76 37 0.00 0.0
77 38 0.00 0.0
77 38 0.00 0.0
80 35 0.00 0.0
72 46 0.00 0.0
73 37 0.00 0.0
73 32 0.00 0.0
74 32 0.00 0.0
76 39 0.00 0.0
72 39 0.00 0.0
70 43 0.00 0.0
66 40 0.02 0.0
63 42 0.00 0.0
68 44 0.00 0.0
61 41 0.00 0.0
71 40 0.02 0.0
n/a 39 0.00 0.0
76 39 0.00 0.0
65 33 0.00 0.0
60 36 0.00 0.0
61 32 0.00 0.0
56 36 0.00 0.0
59 30 0.00 0.0
54 41 0.15 0.0
53 33 0.00 0.0
62 37 0.00 0.0
65 30 0.00 0.0
68 32 0.00 0.0
67 36 0.00 0.0
November 1921 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
64 29 0.00 0.0
64 28 0.00 0.0
64 27 0.00 0.0
63 28 0.00 0.0
63 28 0.00 0.0
64 32 0.00 0.0
60 29 0.00 0.0
59 22 0.00 0.0
56 22 0.00 0.0
56 25 0.00 0.0
59 26 0.00 0.0
58 27 0.00 0.0
56 32 0.00 0.0
67 36 0.00 0.0
52 25 0.00 0.0
39 17 0.01 0.0
37 27 0.01 0.1
35 18 0.01 0.1
41 32 0.10 0.0
49 36 0.32 0.0
56 47 0.52 0.0
56 45 0.01 0.0
55 36 0.02 0.0
53 38 0.00 0.0
56 37 0.07 0.0
50 35 0.05 0.0
50 39 0.00 0.0
45 28 0.05 0.0
49 33 0.16 0.0
52 42 0.52 0.0
December 1921 Boise Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
53 43 0.14 0.0
43 36 0.20 0.0
42 26 0.00 0.0
43 25 0.00 0.0
40 25 0.00 0.0
43 21 0.00 0.0
43 23 0.00 0.0
43 24 0.00 0.0
40 22 0.00 0.0
36 23 0.00 0.0
39 25 0.00 0.0
53 30 0.01 0.0
46 29 0.00 0.0
47 30 0.00 0.0
43 27 0.01 0.1
32 14 0.00 0.0
31 18 0.00 0.0
33 11 0.00 0.0
30 22 0.01 0.1
37 23 0.16 1.5
40 29 0.00 0.0
32 21 0.00 0.0
39 23 0.18 2.0
36 27 0.02 0.2
34 17 0.16 2.0
31 15 0.00 0.0
42 21 0.00 0.0
36 18 0.00 0.0
29 18 0.02 0.2
34 18 0.00 0.0
39 24 0.00 0.0
Weather Station Details
Years Station Coordinates
1940–2023 location
1911–1939 Meridian 1 W location