Iowa City Weather in 2021

Historical record of Iowa City, Iowa weather for the year 2021 based on NOAA data.
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2021 Iowa City Weather Extremes
Highest temperature 96 °F August 24
Lowest temperature -14 °F February 17
Highest daily low 75 °F July 28
Lowest daily high -2 °F February 14
Most daily precipitation 2.4 inches October 24
Total annual precipitation 29.9 inches -
Highest Temperatures in Iowa City in 2021
Rank Temperature Date
1 96 °F Aug 24
2 95 °F Jun 17
2 95 °F Jun 11
2 95 °F Jun 10
5 93 °F Aug 28
5 93 °F Aug 10
5 93 °F Jul 28
5 93 °F Jul 24
5 93 °F Jun 13
10 92 °F Aug 27
10 92 °F Jul 29
10 92 °F Jun 19
10 92 °F Jun 18
10 92 °F Jun 9
10 92 °F Jun 5
Lowest Temperatures in Iowa City in 2021
Rank Temperature Date
1 -14 °F February 17
1 -14 °F February 9
3 -11 °F February 16
3 -11 °F February 7
5 -8 °F February 15
6 -7 °F February 14
6 -7 °F February 13
8 -5 °F February 6
9 -4 °F February 12
10 -2 °F February 19
10 -2 °F February 8
10 -2 °F January 28
January 2021 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches)
28 19 0.33
23 9 0.00
26 18 0.00
33 19 0.00
32 10 0.00
30 23 0.00
34 27 0.00
34 27 0.00
28 25 0.00
28 21 0.00
37 28 0.00
37 17 0.00
39 19 0.00
38 21 0.13
35 30 0.06
35 27 0.00
29 24 0.00
30 14 0.00
35 13 0.00
41 3 0.00
39 23 0.00
23 2 0.00
28 0 0.02
36 27 0.05
28 23 0.16
27 14 0.07
27 3 0.00
21 -2 0.00
29 14 0.00
34 29 0.53
33 31 0.13
February 2021 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches)
31 20 0.00
25 20 0.00
33 19 0.00
36 14 0.33
14 5 0.00
7 -5 0.04
0 -11 0.00
6 -2 0.04
5 -14 0.00
12 2 0.00
10 1 0.00
4 -4 0.00
1 -7 0.02
-2 -7 0.00
2 -8 0.06
8 -11 0.02
14 -14 0.00
20 3 0.00
21 -2 0.00
32 13 0.00
34 20 0.19
41 24 0.00
45 34 0.00
40 27 0.00
38 19 0.00
41 16 0.00
46 24 0.00
43 26 0.00
March 2021 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches)
34 16 0.00
48 15 0.00
53 26 0.00
42 25 0.00
43 26 0.00
53 32 0.00
65 33 0.00
66 40 0.00
71 40 0.00
70 44 0.30
52 31 0.00
52 28 0.00
60 30 0.00
49 35 0.02
37 31 0.67
38 32 0.00
37 35 0.07
52 36 0.00
53 28 0.00
59 26 0.00
67 36 0.00
60 46 0.00
55 49 0.67
52 43 0.03
47 42 0.37
50 42 0.06
60 42 0.44
48 32 0.00
73 32 0.00
58 38 0.00
40 27 0.00
April 2021 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches)
45 23 0.00
57 27 0.00
72 43 0.00
79 37 0.00
80 56 0.00
80 56 0.00
74 57 0.63
59 50 0.05
58 49 0.04
51 46 1.56
58 44 0.06
59 40 0.00
56 33 0.00
51 30 0.00
51 37 0.00
60 38 0.00
64 40 0.00
64 40 0.00
50 35 0.03
46 27 0.00
49 25 0.00
60 29 0.00
56 46 0.00
61 38 0.00
56 35 0.00
85 43 0.00
86 62 0.00
73 55 0.00
76 47 0.00
71 45 0.00
May 2021 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches)
88 54 0.00
85 58 0.00
72 58 1.13
64 50 0.00
66 40 0.00
64 42 0.00
65 40 0.00
58 36 0.70
62 40 0.48
65 43 0.00
61 41 0.00
66 36 0.00
68 37 0.00
70 41 0.02
60 51 0.69
66 54 0.09
67 58 0.35
67 61 0.29
79 64 0.11
80 67 0.03
76 64 0.03
75 64 0.00
82 65 0.13
84 69 0.01
80 69 0.00
81 61 0.03
66 46 0.20
49 45 0.04
65 40 0.00
69 41 0.00
71 55 0.00
June 2021 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches)
78 50 0.00
81 53 0.00
88 54 0.00
89 63 0.00
92 66 0.00
87 65 0.00
87 68 0.00
90 71 0.04
92 68 0.00
95 69 0.00
95 71 0.00
91 65 0.00
93 61 0.00
88 63 0.00
89 59 0.00
86 63 0.00
95 66 0.09
92 74 0.01
92 66 0.00
82 65 0.30
72 51 0.00
81 45 0.77
85 62 0.18
84 70 0.26
83 72 0.45
82 70 0.35
81 67 0.00
82 71 0.00
77 70 0.22
88 68 0.00
July 2021 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches)
87 68 0.00
83 64 0.00
85 61 0.00
89 67 0.00
91 71 0.00
91 72 0.00
87 69 0.00
78 64 0.00
79 63 1.58
72 64 0.37
73 63 0.50
73 65 0.00
83 65 0.00
86 67 1.16
81 68 0.38
83 66 0.00
84 61 0.00
85 64 0.00
86 68 0.00
87 66 0.00
89 68 0.00
87 70 0.00
91 72 0.00
93 73 0.01
90 67 0.00
91 63 0.00
91 65 0.00
93 75 0.00
92 74 0.00
80 68 0.00
82 63 0.17
August 2021 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches)
85 65 0.00
82 57 0.00
85 56 0.00
84 59 0.00
79 61 0.17
85 64 0.00
89 67 0.00
86 72 0.00
90 73 0.00
93 72 0.00
91 72 0.00
81 65 0.00
84 64 0.00
83 56 0.00
83 55 0.00
83 54 0.00
86 59 0.00
90 61 0.00
90 66 0.00
91 67 0.00
86 63 0.21
82 60 0.00
89 64 0.90
96 70 0.87
88 70 0.32
86 68 0.00
92 72 0.00
93 74 0.00
85 67 0.00
84 62 0.00
75 64 0.14
September 2021 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches)
81 61 0.00
77 56 0.00
71 62 0.94
74 61 0.01
82 57 0.00
85 59 0.00
86 58 0.00
79 53 0.00
79 54 0.00
82 52 0.00
88 60 0.00
87 66 0.00
87 65 0.00
77 59 0.00
80 52 0.00
85 53 0.00
86 54 0.03
86 58 0.00
91 62 0.00
86 63 0.27
73 57 0.00
71 49 0.00
73 46 0.00
79 47 0.01
74 43 0.00
90 51 0.00
89 54 0.00
86 58 0.00
90 59 0.00
88 62 0.00
October 2021 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches)
85 59 0.02
82 64 0.00
79 58 0.00
75 54 0.00
73 59 0.00
74 65 0.00
73 60 0.00
79 60 0.12
83 56 0.00
78 61 0.93
65 57 0.85
70 48 0.00
72 56 0.53
70 50 0.00
63 39 0.00
63 38 0.00
71 40 0.00
74 40 0.00
74 44 0.00
71 49 0.00
53 43 0.01
52 35 0.00
57 32 0.00
50 43 2.36
57 37 0.44
59 35 0.00
58 46 0.00
51 46 0.71
54 48 0.01
61 40 0.00
54 32 0.00
November 2021 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches)
48 28 0.00
49 25 0.00
48 23 0.00
54 33 0.00
56 34 0.00
64 36 0.00
68 37 0.00
67 41 0.00
64 47 0.00
58 41 0.08
56 36 0.45
38 34 0.01
38 34 0.01
43 28 0.00
42 29 0.00
57 30 0.00
55 30 0.00
35 20 0.00
42 17 0.00
56 35 0.00
55 26 0.00
35 17 0.00
53 20 0.00
58 38 0.00
38 16 0.00
40 14 0.00
59 26 0.01
43 24 0.00
57 26 0.00
56 32 0.00
December 2021 Iowa City Weather
Day High (°F) Low (°F) Precip. (inches)
54 38 0.06
54 32 0.00
57 30 0.00
41 29 0.00
43 32 0.00
33 9 0.00
30 9 0.00
34 18 0.00
52 27 0.00
46 31 0.30
43 28 0.00
54 28 0.00
50 28 0.00
55 28 0.00
75 52 0.04
52 22 0.00
40 17 0.00
35 24 0.00
31 15 0.00
41 20 0.00
39 15 0.00
35 14 0.00
50 25 0.00
55 31 0.00
52 25 0.00
43 20 0.14
41 26 0.01
35 27 0.56
31 11 0.05
31 23 0.00
32 18 0.00
Weather Station Details
Years Station Coordinates
1999–2024 Iowa City Municipal Airport location
1893–1998 Iowa City location