Idaho Falls Weather in 2021

Historical record of Idaho Falls, Idaho weather for the year 2021 based on NOAA data.
Jump to month:
2021 Idaho Falls Weather Extremes
Highest temperature 99 °F July 18
Lowest temperature -1 °F February 10
Highest daily low 64 °F August 1
Lowest daily high 18 °F December 28
Most daily precipitation 1.3 inches July 31
Total annual precipitation 10.9 inches -
January 2021 Idaho Falls Weather
Day High (°F) Low (°F) Precip. (inches)
26 22 0.00
32 24 0.03
36 22 0.00
36 14 0.11
34 12 0.06
24 6 0.00
31 18 0.00
28 14 0.00
26 -1 0.00
24 15 0.00
21 3 0.00
27 2 0.00
41 21 0.00
32 12 0.00
26 6 0.00
24 16 0.00
27 21 0.00
25 13 0.00
28 7 0.00
21 2 0.00
27 16 0.11
30 19 0.00
31 13 0.00
26 21 0.00
22 6 0.00
26 1 0.00
31 8 0.00
38 27 0.02
42 32 0.06
36 20 0.00
31 13 0.00
February 2021 Idaho Falls Weather
Day High (°F) Low (°F) Precip. (inches)
33 10 0.00
43 19 0.00
36 25 0.27
28 20 0.00
36 23 0.00
36 24 0.00
37 21 0.00
32 2 0.00
27 7 0.00
37 -1 0.00
33 18 0.00
20 10 0.06
20 6 0.07
20 3 0.00
23 16 0.14
31 20 0.00
28 14 0.00
25 13 0.00
33 22 0.00
32 10 0.06
31 11 0.00
39 28 0.00
38 21 0.00
28 2 0.00
29 1 0.00
29 22 0.01
29 6 0.00
28 2 0.00
March 2021 Idaho Falls Weather
Day High (°F) Low (°F) Precip. (inches)
34 4 0.00
36 6 0.00
38 11 0.00
45 12 0.00
39 16 0.00
50 18 0.00
45 26 0.00
50 23 0.08
39 27 0.00
41 24 0.00
41 18 0.00
44 18 0.00
50 19 0.00
55 28 0.00
50 29 0.00
52 29 0.00
53 26 0.00
59 29 0.00
60 31 0.09
41 29 0.67
41 19 0.00
35 29 0.13
46 25 0.00
41 23 0.00
38 30 0.03
45 27 0.00
51 27 0.00
64 31 0.00
55 23 0.00
41 18 0.00
48 22 0.00
April 2021 Idaho Falls Weather
Day High (°F) Low (°F) Precip. (inches)
63 24 0.00
69 27 0.00
71 31 0.00
72 33 0.00
54 33 0.19
45 30 0.13
58 27 0.00
53 29 0.00
50 22 0.00
60 24 0.00
45 28 0.00
48 24 0.00
52 27 0.00
43 29 0.03
47 31 0.10
53 31 0.00
59 24 0.00
64 28 0.00
47 27 0.00
49 19 0.00
57 22 0.00
61 20 0.00
59 32 0.00
59 40 0.00
49 40 0.22
51 38 0.03
58 34 0.00
65 33 0.00
72 36 0.00
83 36 0.00
May 2021 Idaho Falls Weather
Day High (°F) Low (°F) Precip. (inches)
74 45 0.00
64 43 0.00
63 41 0.00
59 43 0.03
65 31 0.00
80 33 0.00
74 43 0.00
53 33 0.00
56 25 0.00
56 29 0.00
60 26 0.00
68 31 0.00
73 44 0.00
74 39 0.00
66 41 0.00
77 40 0.00
78 41 0.00
78 47 0.00
75 43 0.00
61 39 0.02
53 39 0.42
62 34 0.05
57 41 0.54
62 43 0.00
67 39 0.19
64 44 0.11
74 37 0.00
70 47 0.00
70 34 0.00
76 36 0.00
80 36 0.00
June 2021 Idaho Falls Weather
Day High (°F) Low (°F) Precip. (inches)
82 40 0.00
88 44 0.00
92 48 0.00
93 50 0.00
86 63 0.00
77 51 0.00
80 48 0.00
83 50 0.00
86 47 0.00
71 44 0.00
72 33 0.00
83 37 0.00
95 45 0.00
95 47 0.00
91 45 0.00
85 55 0.00
88 54 0.00
90 45 0.00
92 47 0.00
82 47 0.00
86 47 0.00
94 47 0.00
87 56 0.00
80 52 0.16
81 49 0.00
83 54 0.00
87 50 0.00
88 52 0.00
89 51 0.00
88 52 0.00
July 2021 Idaho Falls Weather
Day High (°F) Low (°F) Precip. (inches)
91 54 0.00
91 53 0.00
94 52 0.00
94 55 0.00
86 58 0.01
93 52 0.00
99 54 0.00
93 52 0.00
91 50 0.00
89 46 0.00
95 49 0.00
95 51 0.00
91 52 0.00
89 51 0.00
95 50 0.00
94 51 0.00
94 49 0.00
99 50 0.00
92 53 0.00
91 62 0.00
93 54 0.02
92 58 0.00
90 53 0.00
90 46 0.00
93 48 0.00
94 50 0.00
92 53 0.00
85 64 0.07
90 57 0.00
88 57 0.00
79 63 1.28
August 2021 Idaho Falls Weather
Day High (°F) Low (°F) Precip. (inches)
87 64 0.01
82 60 0.25
85 53 0.00
91 54 0.00
92 56 0.00
69 50 0.08
83 46 0.00
86 49 0.00
77 47 0.00
83 42 0.00
88 47 0.00
94 50 0.00
96 55 0.00
92 51 0.00
91 51 0.00
91 49 0.00
92 52 0.00
67 52 0.80
55 49 0.44
71 47 0.05
72 45 0.22
81 n/a 0.00
80 50 0.00
87 46 0.00
80 45 0.00
80 50 0.00
77 44 0.00
85 37 0.00
87 42 0.00
82 45 0.00
September 2021 Idaho Falls Weather
Day High (°F) Low (°F) Precip. (inches)
77 44 0.00
79 40 0.00
75 43 0.00
81 35 0.00
87 38 0.00
89 41 0.00
86 42 0.00
92 42 0.00
95 44 0.00
92 51 0.03
78 57 0.00
81 44 0.00
81 49 0.00
77 45 0.00
83 41 0.00
76 48 0.00
80 33 0.00
81 43 0.00
59 42 0.38
60 39 0.00
68 33 0.00
77 34 0.00
74 42 0.00
75 37 0.00
82 38 0.00
83 39 0.00
82 37 0.00
60 39 0.00
61 28 0.00
66 26 0.00
October 2021 Idaho Falls Weather
Day High (°F) Low (°F) Precip. (inches)
71 29 0.00
72 30 0.00
75 30 0.00
80 33 0.00
82 37 0.00
72 45 0.00
60 50 0.04
59 44 0.16
47 44 0.13
57 33 0.00
51 31 0.47
37 31 0.01
44 32 0.00
44 32 0.02
53 26 0.00
59 27 0.00
69 30 0.00
64 35 0.16
57 35 0.00
60 35 0.00
67 35 0.00
71 33 0.00
53 42 0.00
54 40 0.10
56 42 0.42
51 38 0.27
56 38 0.00
60 32 0.00
64 34 0.00
58 39 0.00
59 35 0.00
November 2021 Idaho Falls Weather
Day High (°F) Low (°F) Precip. (inches)
50 31 0.00
51 35 0.13
54 29 0.00
62 31 0.07
58 36 0.00
54 31 0.03
47 34 0.00
43 19 0.00
44 24 0.09
44 31 0.00
39 27 0.00
45 33 0.00
53 36 0.00
58 44 0.00
63 35 0.00
54 23 0.00
36 18 0.00
37 19 0.00
43 32 0.12
38 34 0.00
41 27 0.00
47 22 0.00
49 16 0.00
37 27 0.00
41 17 0.00
44 22 0.00
46 21 0.00
53 25 0.00
55 23 0.00
41 26 0.00
December 2021 Idaho Falls Weather
Day High (°F) Low (°F) Precip. (inches)
48 23 0.00
54 25 0.00
47 26 0.00
54 25 0.00
51 26 0.00
37 26 0.00
36 29 0.00
45 32 0.00
34 23 0.00
28 17 0.02
33 24 0.00
42 32 0.00
45 33 0.01
45 29 0.17
29 19 0.00
30 23 0.03
29 11 0.00
30 15 0.00
29 11 0.00
41 21 0.00
35 20 0.00
36 14 0.00
39 22 0.12
36 27 0.06
37 27 0.00
37 19 0.00
29 14 0.00
18 10 0.00
19 9 0.38
25 18 0.02
24 0 0.00
Weather Station Details
Years Station Coordinates
1948–2023 Idaho Falls Fanning Field location