Waterloo Weather in 1977

Historical record of Waterloo, Iowa weather for the year 1977 based on NOAA data.
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1977 Waterloo Weather Extremes
Highest temperature 100 °F July 14
Lowest temperature -28 °F January 17
Highest daily low 75 °F July 4
Lowest daily high -12 °F January 16
Most daily precipitation 2.1 inches August 15
Most daily snow 6.2 inches December 31
Total annual precipitation 34.0 inches -
Total annual snow 39.4 inches -
Highest Temperatures in Waterloo in 1977
Rank Temperature Date
1 100 °F Jul 14
2 97 °F Jul 6
3 96 °F Jul 5
3 96 °F Jun 5
5 95 °F Jul 4
6 93 °F Jul 16
6 93 °F Jul 13
6 93 °F Jul 3
6 93 °F Jun 27
10 92 °F Jul 30
10 92 °F Jul 19
10 92 °F Jun 4
Lowest Temperatures in Waterloo in 1977
Rank Temperature Date
1 -28 °F January 17
2 -27 °F January 9
3 -26 °F January 16
3 -26 °F January 11
5 -19 °F January 19
5 -19 °F January 15
5 -19 °F January 12
8 -18 °F January 28
8 -18 °F January 10
8 -18 °F January 4
January 1977 Waterloo Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
9 -10 0.00 0.0
13 -9 0.03 0.3
22 -11 0.04 0.6
12 -18 0.00 0.0
10 -10 0.00 0.0
15 -4 0.00 0.0
11 -17 0.02 0.2
12 -17 0.05 0.7
-7 -27 0.00 0.0
-5 -18 0.03 0.3
11 -26 0.00 0.0
1 -19 0.00 0.0
24 -3 0.02 0.2
16 -12 0.00 0.0
1 -19 0.00 0.0
-12 -26 0.00 0.0
-3 -28 0.00 0.0
7 -13 0.00 0.0
18 -19 0.10 1.8
22 3 0.00 0.0
24 -10 0.00 0.0
17 -11 0.00 0.0
27 2 0.00 0.0
27 -3 0.00 0.0
21 17 0.00 0.0
26 -5 0.04 0.4
18 -15 0.04 0.4
-4 -18 0.00 0.0
7 -10 0.00 0.0
8 -7 0.00 0.0
14 -5 0.00 0.0
February 1977 Waterloo Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
15 -6 0.00 0.0
30 -2 0.00 0.0
36 13 0.00 0.0
30 2 0.07 0.9
7 -8 0.00 0.0
8 -15 0.00 0.0
18 -15 0.00 0.0
36 5 0.00 0.0
54 15 0.00 0.0
57 21 0.00 0.0
56 20 0.00 0.0
38 29 0.00 0.0
39 28 0.00 0.0
29 12 0.00 0.0
23 3 0.00 0.0
29 -1 0.00 0.0
40 20 0.00 0.0
48 16 0.00 0.0
31 13 0.00 0.0
32 12 0.00 0.0
47 5 0.00 0.0
54 19 0.00 0.0
53 36 0.51 0.0
38 25 0.10 0.9
36 25 0.00 0.0
31 24 0.00 0.0
28 18 0.00 0.0
33 14 0.00 0.0
March 1977 Waterloo Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
33 10 0.00 0.0
41 17 0.09 0.6
44 29 0.08 0.2
34 27 0.00 0.0
37 22 0.00 0.0
40 16 0.00 0.0
58 18 0.00 0.0
75 26 0.00 0.0
62 32 0.00 0.0
64 31 0.00 0.0
54 45 1.48 0.0
54 41 0.04 0.0
45 41 0.01 0.0
66 35 0.00 0.0
53 33 0.00 0.0
51 29 0.00 0.0
44 33 0.20 0.0
40 30 0.03 0.0
39 23 0.23 2.3
41 24 0.00 0.0
36 22 0.00 0.0
51 20 0.00 0.0
44 26 0.00 0.0
53 26 0.00 0.0
64 30 0.00 0.0
66 48 0.10 0.0
59 54 0.06 0.0
54 49 0.63 0.0
58 39 0.03 0.0
49 33 0.06 0.0
39 29 0.00 0.0
April 1977 Waterloo Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
50 32 0.58 0.0
45 30 0.25 0.0
45 24 0.11 0.0
38 30 0.39 1.5
36 25 0.00 0.0
40 19 0.00 0.0
58 32 0.00 0.0
56 25 0.00 0.0
80 33 0.00 0.0
82 53 0.00 0.0
81 56 0.00 0.0
74 50 0.00 0.0
66 46 0.00 0.0
65 50 0.00 0.0
78 44 0.00 0.0
82 49 0.00 0.0
79 51 0.04 0.0
82 50 0.00 0.0
73 53 0.13 0.0
73 49 0.27 0.0
58 41 0.27 0.0
62 39 0.00 0.0
71 38 0.00 0.0
58 37 0.00 0.0
60 31 0.00 0.0
75 32 0.00 0.0
84 42 0.00 0.0
67 32 0.22 0.0
61 31 0.00 0.0
69 31 0.00 0.0
May 1977 Waterloo Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
73 53 0.00 0.0
72 50 0.00 0.0
58 52 0.00 0.0
67 54 0.48 0.0
73 48 0.00 0.0
69 48 0.00 0.0
67 43 0.00 0.0
74 41 0.00 0.0
67 33 0.00 0.0
70 33 0.00 0.0
73 46 0.00 0.0
80 45 0.00 0.0
85 51 0.00 0.0
85 55 0.00 0.0
87 63 0.15 0.0
86 65 0.02 0.0
84 63 0.07 0.0
88 63 0.00 0.0
88 62 0.00 0.0
70 54 0.00 0.0
79 50 0.43 0.0
67 61 0.00 0.0
82 52 0.00 0.0
87 56 0.00 0.0
87 60 0.00 0.0
85 61 0.05 0.0
87 59 0.00 0.0
81 61 0.19 0.0
80 60 0.08 0.0
81 54 0.00 0.0
71 59 0.00 0.0
June 1977 Waterloo Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
81 49 0.00 0.0
74 48 0.00 0.0
81 52 0.00 0.0
92 64 0.00 0.0
96 70 0.00 0.0
74 52 0.00 0.0
82 47 0.09 0.0
77 47 0.03 0.0
72 39 0.00 0.0
84 51 0.71 0.0
87 67 0.16 0.0
72 58 0.00 0.0
73 53 0.00 0.0
78 51 0.00 0.0
81 55 0.00 0.0
84 66 0.01 0.0
80 63 0.50 0.0
79 60 0.00 0.0
82 55 0.00 0.0
75 55 0.00 0.0
74 52 0.03 0.0
81 58 0.00 0.0
82 63 0.22 0.0
89 63 0.89 0.0
85 60 0.00 0.0
89 59 0.00 0.0
93 65 0.00 0.0
79 59 0.20 0.0
85 56 0.00 0.0
75 60 1.27 0.0
July 1977 Waterloo Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
78 54 0.00 0.0
86 54 0.00 0.0
93 68 0.14 0.0
95 75 0.00 0.0
96 71 0.00 0.0
97 69 0.84 0.0
85 67 0.00 0.0
82 59 0.00 0.0
78 56 0.00 0.0
80 56 0.00 0.0
85 67 0.05 0.0
83 60 0.00 0.0
93 56 0.00 0.0
100 71 0.00 0.0
87 68 0.01 0.0
93 65 1.04 0.0
76 66 0.04 0.0
88 69 1.38 0.0
92 72 0.00 0.0
91 72 0.02 0.0
80 64 0.02 0.0
80 60 0.00 0.0
85 60 0.00 0.0
85 73 0.02 0.0
78 54 0.00 0.0
75 53 0.00 0.0
78 50 0.00 0.0
85 60 0.37 0.0
83 62 0.00 0.0
92 65 0.00 0.0
76 56 0.00 0.0
August 1977 Waterloo Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
85 49 0.08 0.0
78 60 0.06 0.0
87 58 0.00 0.0
82 62 0.00 0.0
76 62 0.20 0.0
74 59 0.00 0.0
86 67 0.27 0.0
80 66 0.09 0.0
77 66 0.08 0.0
75 56 0.01 0.0
73 52 0.00 0.0
81 50 0.00 0.0
77 55 0.02 0.0
74 48 0.00 0.0
76 49 2.13 0.0
69 55 0.00 0.0
71 48 0.00 0.0
71 43 0.02 0.0
63 56 0.42 0.0
71 55 0.01 0.0
76 54 0.00 0.0
80 50 0.00 0.0
61 48 0.03 0.0
72 44 0.00 0.0
74 51 1.03 0.0
81 65 0.11 0.0
90 67 0.30 0.0
68 55 0.27 0.0
74 49 0.00 0.0
78 59 0.00 0.0
82 65 0.32 0.0
September 1977 Waterloo Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
78 63 0.00 0.0
72 56 0.00 0.0
66 56 0.02 0.0
78 58 0.00 0.0
75 54 0.00 0.0
81 55 0.00 0.0
75 59 0.02 0.0
83 58 0.01 0.0
71 49 0.10 0.0
71 42 0.00 0.0
75 45 0.00 0.0
66 57 0.72 0.0
69 48 0.00 0.0
73 43 0.00 0.0
65 49 0.06 0.0
62 53 0.00 0.0
74 60 2.12 0.0
73 58 0.64 0.0
58 53 0.00 0.0
65 48 0.00 0.0
70 50 0.12 0.0
70 49 0.00 0.0
67 46 0.92 0.0
64 50 0.00 0.0
72 46 0.00 0.0
72 49 0.00 0.0
65 43 0.00 0.0
68 37 0.00 0.0
66 53 0.24 0.0
63 48 1.12 0.0
October 1977 Waterloo Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
55 47 0.00 0.0
58 36 0.00 0.0
61 32 0.00 0.0
64 33 0.00 0.0
60 36 0.00 0.0
55 31 0.00 0.0
49 41 0.96 0.0
49 38 0.00 0.0
55 36 0.00 0.0
56 32 0.16 0.0
43 32 0.00 0.0
50 29 0.00 0.0
62 25 0.00 0.0
64 32 0.00 0.0
51 30 0.00 0.0
54 23 0.00 0.0
61 36 0.00 0.0
53 33 0.00 0.0
59 25 0.00 0.0
65 32 0.00 0.0
67 41 0.18 0.0
50 41 0.12 0.0
46 38 0.99 0.0
56 46 0.16 0.0
51 43 0.00 0.0
63 37 0.00 0.0
57 37 0.00 0.0
59 37 0.00 0.0
61 39 0.00 0.0
55 39 0.09 0.0
60 44 0.28 0.0
November 1977 Waterloo Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
49 39 0.01 0.0
55 43 0.00 0.0
62 44 0.10 0.0
61 36 0.00 0.0
58 35 0.00 0.0
56 51 0.00 0.0
57 52 0.00 0.0
61 55 0.01 0.0
61 33 0.21 0.1
38 28 0.00 0.0
41 24 0.00 0.0
39 16 0.00 0.0
45 27 0.00 0.0
54 24 0.00 0.0
55 35 0.00 0.0
47 30 0.00 0.0
46 31 0.00 0.0
45 26 0.00 0.0
44 38 0.00 0.0
61 23 0.44 0.0
26 16 0.00 0.0
39 16 0.00 0.0
34 25 0.57 5.8
25 5 0.24 2.4
13 -9 0.06 0.6
14 -17 0.09 0.8
25 6 0.08 0.7
20 -9 0.00 0.0
32 6 0.00 0.0
33 16 0.08 0.8
December 1977 Waterloo Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
33 17 0.02 0.1
30 9 0.00 0.0
19 2 0.00 0.0
25 10 0.12 0.4
25 -1 0.41 5.1
6 -7 0.00 0.0
12 -15 0.04 0.4
16 -4 0.37 3.9
-3 -12 0.00 0.0
3 -13 0.00 0.0
26 -3 0.00 0.0
39 26 0.00 0.0
39 32 0.00 0.0
34 31 0.00 0.0
41 33 0.00 0.0
40 34 0.00 0.0
45 34 0.07 0.0
35 31 0.00 0.0
32 21 0.07 0.7
21 14 0.01 0.1
18 13 0.00 0.0
34 9 0.00 0.0
25 14 0.00 0.0
27 5 0.00 0.0
5 -6 0.00 0.0
7 -6 0.00 0.0
7 -10 0.00 0.0
23 7 0.00 0.0
27 8 0.00 0.0
25 4 0.00 0.0
27 18 0.62 6.2
Weather Station Details
Years Station Coordinates
1950–2024 Waterloo Municipal Airport location
1895–1950 Waterloo location