Iowa City Weather in 1940

Historical record of Iowa City, Iowa weather for the year 1940 based on NOAA data.
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1940 Iowa City Weather Extremes
Highest temperature 105 °F July 25
Lowest temperature -18 °F January 18
Highest daily low 76 °F July 25
Lowest daily high -2 °F January 18
Most daily precipitation 2.1 inches August 13
Most daily snow 5.8 inches January 14
Total annual precipitation 28.5 inches -
Highest Temperatures in Iowa City in 1940
Rank Temperature Date
1 105 °F Jul 25
2 101 °F Jul 24
3 99 °F Jul 23
4 98 °F Jul 19
5 97 °F Jul 22
6 96 °F Jul 10
7 95 °F Aug 2
7 95 °F Jul 21
7 95 °F Jun 18
10 94 °F Jul 26
10 94 °F Jul 20
Lowest Temperatures in Iowa City in 1940
Rank Temperature Date
1 -18 °F January 18
2 -16 °F January 25
3 -14 °F January 19
4 -10 °F February 25
5 -8 °F February 10
5 -8 °F January 28
5 -8 °F January 27
5 -8 °F January 5
9 -7 °F December 3
10 -6 °F January 26
January 1940 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
14 5 0.00 0.0
15 -2 0.00 0.0
19 1 0.00 0.0
14 -5 0.00 0.0
13 -8 0.00 0.0
24 -1 0.00 0.0
22 15 0.11 2.0
29 14 0.03 0.2
21 5 0.00 0.0
30 21 0.01 0.1
33 27 0.05 0.2
27 5 0.00 0.0
28 12 0.29 4.7
28 19 0.72 5.8
19 3 0.00 0.0
9 3 0.00 0.0
4 -2 0.02 0.6
-2 -18 0.00 0.0
11 -14 0.00 0.0
13 -4 0.00 0.0
19 3 0.00 0.0
17 1 0.00 0.0
11 -5 0.00 0.0
10 -3 0.00 0.0
5 -16 0.00 0.0
9 -6 0.00 0.0
15 -8 0.00 0.0
24 -8 0.00 0.0
22 11 0.00 0.0
29 13 0.00 0.0
36 18 0.00 0.0
February 1940 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
37 27 0.00 0.0
29 13 0.00 0.0
28 6 0.02 0.2
34 23 0.17 1.6
34 26 0.00 0.0
32 23 0.00 0.0
29 21 0.00 0.0
30 22 0.20 3.0
27 17 0.04 0.5
24 -8 0.00 0.0
43 12 0.00 0.0
39 28 0.00 0.0
30 16 0.00 0.0
30 19 0.00 0.0
39 22 0.00 0.0
37 32 0.30 0.0
39 32 0.02 0.0
37 30 0.00 0.0
35 30 0.15 1.5
35 29 0.07 0.8
34 27 0.03 0.4
27 16 0.00 0.0
33 16 0.23 1.0
33 7 0.05 0.7
14 -10 0.00 0.0
33 13 0.00 0.0
35 27 0.00 0.0
29 23 0.02 0.4
40 15 0.00 0.0
March 1940 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
41 28 0.00 0.0
35 30 0.58 0.0
38 32 0.14 0.0
35 29 0.06 1.0
33 30 0.00 0.0
37 26 0.00 0.0
38 27 0.00 0.0
39 22 0.00 0.0
36 23 0.09 1.9
34 18 0.01 0.1
32 21 0.00 0.0
30 24 0.07 0.7
28 20 0.17 1.3
22 11 0.00 0.0
37 11 0.00 0.0
45 21 0.00 0.0
61 33 0.00 0.0
51 35 0.00 0.0
47 30 0.00 0.0
43 25 0.11 0.0
32 22 0.14 2.2
22 11 0.00 0.0
22 9 0.00 0.0
21 10 0.00 0.0
30 7 0.00 0.0
35 25 0.02 0.0
43 32 0.06 0.0
61 34 0.00 0.0
63 38 0.02 0.0
74 36 0.00 0.0
65 41 0.00 0.0
April 1940 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
61 37 0.00 0.0
76 41 0.00 0.0
67 48 0.07 0.0
50 38 0.00 0.0
54 29 0.02 0.0
59 30 0.00 0.0
51 40 0.69 0.0
48 35 0.28 0.0
56 31 0.00 0.0
52 45 0.45 0.0
48 26 0.00 0.0
41 19 0.00 0.0
49 24 0.00 0.0
71 32 0.00 0.0
73 47 0.03 0.0
68 42 0.00 0.0
58 33 1.13 0.0
56 32 0.03 0.0
60 35 0.00 0.0
63 37 0.00 0.0
60 39 0.00 0.0
64 45 0.00 0.0
56 45 0.30 0.0
58 38 0.02 0.0
55 41 0.02 0.0
59 37 0.05 0.0
64 35 0.00 0.0
75 49 0.00 0.0
70 57 0.38 0.0
58 42 0.00 0.0
May 1940 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
43 32 0.03 0.0
61 35 0.00 0.0
63 35 0.00 0.0
67 37 0.02 0.0
83 50 0.04 0.0
74 51 0.01 0.0
62 53 0.28 0.0
67 47 0.08 0.0
69 45 0.00 0.0
67 50 0.00 0.0
71 42 0.00 0.0
83 48 0.00 0.0
90 64 0.00 0.0
73 54 0.00 0.0
54 36 0.06 0.0
67 40 0.00 0.0
72 44 0.00 0.0
72 51 0.47 0.0
65 50 0.38 0.0
78 45 0.00 0.0
76 61 0.02 0.0
74 51 0.00 0.0
73 46 0.00 0.0
72 47 0.00 0.0
66 50 0.18 0.0
68 46 0.04 0.0
71 50 0.08 0.0
67 52 0.06 0.0
75 48 0.00 0.0
77 51 0.00 0.0
78 52 0.00 0.0
June 1940 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
85 52 0.00 0.0
88 59 0.00 0.0
88 60 0.00 0.0
83 65 0.00 0.0
90 65 0.00 0.0
93 68 0.00 0.0
86 66 0.08 0.0
82 62 0.05 0.0
88 62 0.00 0.0
80 63 0.50 0.0
72 61 0.12 0.0
71 58 0.17 0.0
80 65 0.00 0.0
84 61 0.00 0.0
86 65 0.00 0.0
90 59 0.00 0.0
93 68 0.00 0.0
95 68 0.83 0.0
78 57 0.00 0.0
72 55 0.00 0.0
77 50 0.00 0.0
92 66 0.00 0.0
81 66 1.35 0.0
76 57 0.01 0.0
76 57 0.00 0.0
80 59 0.00 0.0
85 59 0.00 0.0
81 63 0.00 0.0
79 52 0.00 0.0
86 60 0.03 0.0
July 1940 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
83 61 0.00 n/a
77 54 0.00 n/a
79 51 0.00 n/a
84 52 0.00 n/a
87 57 0.00 n/a
88 60 0.00 n/a
92 58 0.00 n/a
91 65 0.00 n/a
90 68 0.00 n/a
96 67 0.00 n/a
87 63 1.11 n/a
73 55 0.02 n/a
77 49 0.00 n/a
86 53 0.00 n/a
84 65 0.00 n/a
81 60 0.01 n/a
83 56 0.00 n/a
93 68 0.00 n/a
98 70 0.00 n/a
94 69 0.00 n/a
95 67 0.00 n/a
97 69 0.00 n/a
99 72 0.00 n/a
101 74 0.00 n/a
105 76 0.11 n/a
94 70 0.70 n/a
87 69 0.29 n/a
92 73 0.13 n/a
88 73 0.00 n/a
89 68 1.03 n/a
86 71 0.22 n/a
August 1940 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
89 66 0.00 0.0
95 72 0.00 0.0
92 73 0.00 0.0
90 67 0.00 0.0
86 69 0.10 0.0
81 56 0.00 0.0
83 58 0.00 0.0
89 60 0.00 0.0
78 67 0.08 0.0
73 67 0.37 0.0
83 68 0.18 0.0
85 70 0.00 0.0
81 66 2.13 0.0
85 67 0.00 0.0
86 68 0.00 0.0
82 68 0.93 0.0
82 69 0.01 0.0
76 62 0.14 0.0
69 51 0.00 0.0
73 46 0.00 0.0
77 49 0.00 0.0
81 60 0.01 0.0
71 52 0.00 0.0
64 53 0.36 0.0
81 58 0.00 0.0
82 69 0.01 0.0
77 65 0.61 0.0
78 66 0.00 0.0
79 59 0.00 0.0
76 54 0.00 0.0
72 57 0.00 0.0
September 1940 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
78 52 0.00 n/a
81 55 0.00 n/a
82 57 0.00 n/a
85 59 0.00 n/a
84 61 0.00 n/a
79 62 0.00 n/a
89 66 0.00 n/a
87 70 0.00 n/a
71 59 1.00 n/a
63 42 0.00 n/a
64 40 0.00 n/a
72 38 0.00 n/a
78 44 0.00 n/a
72 47 0.00 n/a
72 46 0.00 n/a
77 50 0.00 n/a
84 54 0.00 n/a
90 61 0.00 n/a
90 66 0.00 n/a
92 59 0.00 n/a
92 62 0.00 n/a
86 63 0.00 n/a
76 63 0.02 n/a
69 53 0.21 n/a
60 37 0.00 n/a
67 34 0.00 n/a
70 36 0.00 n/a
77 39 0.00 n/a
79 52 0.00 n/a
76 48 0.00 n/a
October 1940 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
73 47 0.00 0.0
77 42 0.00 0.0
79 53 0.00 0.0
65 54 0.28 0.0
84 50 0.06 0.0
65 56 0.41 0.0
64 44 0.00 0.0
65 39 0.00 0.0
71 39 0.00 0.0
71 46 0.00 0.0
77 55 0.00 0.0
86 52 0.00 0.0
74 45 0.00 0.0
67 48 0.02 0.0
57 36 0.00 0.0
66 31 0.00 0.0
60 41 0.00 0.0
62 37 0.00 0.0
69 40 0.00 0.0
64 38 0.00 0.0
68 43 0.00 0.0
86 45 0.00 0.0
70 51 0.00 0.0
70 47 0.00 0.0
66 43 0.00 0.0
86 46 0.00 0.0
82 51 0.00 0.0
71 57 0.68 0.0
62 47 0.64 0.0
68 38 0.00 0.0
65 43 0.00 0.0
November 1940 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
57 45 0.02 0.0
65 39 0.00 0.0
72 41 0.00 0.0
62 45 0.00 0.0
62 39 0.00 0.0
46 30 0.00 0.0
51 23 0.00 0.0
49 30 0.03 0.0
49 41 0.62 0.0
50 43 0.05 0.0
55 15 0.47 0.0
20 10 0.00 0.0
22 4 0.00 0.0
23 5 0.00 0.0
27 4 0.00 0.0
50 19 0.00 0.0
51 28 0.00 0.0
55 27 0.00 0.0
56 37 0.16 0.0
39 32 0.19 0.0
55 35 0.45 0.0
43 30 0.00 0.0
43 33 0.03 0.0
42 27 0.00 0.0
43 25 0.00 0.0
35 29 0.46 4.0
30 17 0.00 0.0
35 2 0.02 0.2
38 12 0.00 0.0
31 21 0.00 0.0
December 1940 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
21 8 0.00 0.0
24 8 0.00 0.0
13 -7 0.00 0.0
41 12 0.00 0.0
31 15 0.00 0.0
53 27 0.00 0.0
41 26 0.00 0.0
51 28 0.00 0.0
58 30 0.00 0.0
43 25 0.00 0.0
34 23 0.00 0.0
30 26 0.08 1.1
26 13 0.00 0.0
26 12 0.00 0.0
33 23 0.83 0.0
33 22 0.46 1.1
30 11 0.00 0.0
33 23 0.00 0.0
34 32 0.23 0.1
36 30 0.00 0.0
46 21 0.00 0.0
45 28 0.00 0.0
47 33 0.00 0.0
50 34 0.00 0.0
52 41 0.00 0.0
49 33 0.00 0.0
39 33 0.00 0.0
40 32 0.00 0.0
38 32 0.00 0.0
38 33 0.00 0.0
37 32 0.17 1.2
Weather Station Details
Years Station Coordinates
1999–2024 Iowa City Municipal Airport location
1893–1998 Iowa City location