Detroit Area Average Monthly Temperatures from 1940 to 1960
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Avg for Year
1940
19.0
26.7
28.7
42.8
55.7
67.6
73.4
70.5
62.8
52.2
38.0
32.1
47.5
1941
26.3
25.3
30.5
52.6
62.4
70.0
74.4
71.0
67.6
55.3
43.0
35.6
51.2
1942
25.8
22.7
38.5
52.9
59.5
69.0
73.6
70.6
62.6
53.4
41.2
25.6
49.6
1943
21.7
28.0
33.8
42.4
56.6
72.8
73.5
72.2
61.2
50.7
38.2
27.5
48.2
1944
30.8
28.6
31.2
42.9
63.3
71.5
73.6
74.4
65.6
52.8
42.6
24.8
50.2
1945
17.9
27.8
47.9
50.1
52.6
65.3
70.8
71.5
64.7
51.0
41.8
24.7
48.8
1946
28.1
26.6
46.1
47.8
56.6
67.4
73.3
68.4
65.2
58.2
43.9
32.2
51.2
1947
29.3
22.5
30.9
44.7
53.8
66.0
70.9
76.5
65.4
60.3
37.2
29.0
48.9
1948
19.6
24.4
34.9
51.3
55.5
67.3
73.7
72.1
66.1
50.1
45.7
31.7
49.4
1949
31.6
30.7
35.7
47.3
60.4
73.3
76.2
71.9
59.7
57.4
39.0
33.0
51.4
1950
32.6
26.5
30.2
41.5
58.3
68.2
71.1
70.2
63.1
56.4
36.7
25.4
48.4
1951
27.8
27.7
36.5
46.0
59.9
67.8
72.7
69.5
62.5
55.4
34.6
28.4
49.1
1952
29.3
29.3
34.3
49.6
57.3
72.7
76.5
71.5
64.8
48.1
42.8
34.1
50.9
1953
30.6
32.2
37.9
44.5
59.5
70.9
73.5
74.3
64.7
56.8
44.5
33.7
51.9
1954
26.1
33.5
33.5
50.2
54.7
71.3
71.8
70.3
65.6
54.5
41.2
29.7
50.2
1955
26.3
28.4
35.7
54.5
61.9
68.5
79.1
75.7
65.7
55.3
37.7
27.3
51.3
1956
26.4
28.1
32.4
45.7
56.0
69.8
71.8
71.2
60.4
57.5
40.9
34.9
49.6
1957
21.1
30.6
36.9
49.1
56.4
68.7
72.8
70.2
62.9
50.8
41.0
34.1
49.5
1958
26.6
22.8
36.4
49.6
58.4
63.9
72.4
71.0
63.8
55.0
42.9
22.4
48.8
1959
21.3
25.7
34.3
48.6
62.2
70.1
74.1
76.3
67.0
51.9
36.6
34.7
50.2
1960
29.0
27.5
26.3
50.6
58.4
66.9
70.8
71.9
66.9
53.2
43.6
25.2
49.2