Detroit Area Average Monthly Temperatures from 1900 to 1920
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Avg for Year
1900
28.3
21.3
26.3
48.3
60.0
66.6
72.0
75.5
66.9
60.1
38.7
29.3
49.4
1901
25.1
16.4
33.2
47.7
56.6
68.9
76.8
71.9
64.8
52.9
36.4
25.4
48.0
1902
24.7
22.6
39.3
47.2
58.5
63.9
72.9
68.0
62.2
52.4
46.9
27.0
48.8
1903
24.1
25.6
41.4
46.9
60.8
62.8
72.6
67.4
64.1
53.1
36.5
22.5
48.2
1904
17.6
16.1
33.1
41.2
59.2
67.0
71.2
68.2
63.7
50.5
40.1
25.8
46.1
1905
20.4
17.9
37.5
44.4
57.5
67.2
71.4
71.4
65.4
52.1
37.5
32.0
47.9
1906
33.6
25.6
28.2
49.2
57.5
67.9
71.5
74.5
68.4
51.0
39.6
29.0
49.7
1907
26.0
21.2
39.2
39.1
51.1
64.8
71.0
68.0
62.8
47.3
38.2
30.5
46.6
1908
25.9
21.8
36.1
45.4
59.2
68.2
72.8
69.7
68.7
53.8
40.3
29.8
49.3
1909
28.6
29.2
32.9
43.4
55.7
67.1
71.2
71.5
61.4
47.3
44.9
23.0
48.0
1910
25.1
22.4
44.1
49.0
53.9
66.5
73.9
70.6
63.3
54.6
35.7
23.3
48.5
1911
27.4
28.8
33.7
46.0
64.7
69.5
73.6
70.7
64.2
50.9
35.6
33.9
49.9
1912
13.1
18.3
26.4
46.2
59.2
65.0
71.2
67.4
65.4
53.7
40.4
32.0
46.5
1913
30.3
21.4
33.8
47.4
57.4
69.0
72.9
72.0
62.3
53.2
43.6
34.3
49.8
1914
29.4
17.6
33.1
44.9
60.8
68.0
72.7
71.4
62.8
56.6
39.7
23.9
48.4
1915
23.4
29.9
31.9
52.2
53.1
63.1
70.4
66.0
65.0
53.5
42.3
27.9
48.2
1916
30.1
21.6
28.7
46.8
57.8
63.5
77.9
74.6
63.1
52.9
40.5
26.9
48.7
1917
24.0
19.5
36.3
43.6
51.4
64.1
72.2
69.9
61.2
44.9
38.5
21.9
45.6
1918
13.2
24.5
39.6
44.6
62.4
66.6
71.1
74.8
57.4
55.6
42.3
36.4
49.0
1919
31.1
29.4
36.3
46.0
56.6
74.0
75.0
70.2
66.8
56.5
38.6
23.2
50.3
1920
16.9
22.7
37.7
41.0
56.5
69.1
69.7
69.5
65.7
59.5
39.1
32.8
48.4