National Weather Service United States Department of Commerce
Detroit Area Monthly Precipitation from 1920 to 1940
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Yearly Total
1920 1.73 0.97 2.09 3.38 0.43 5.49 3.65 4.20 1.37 2.26 2.29 2.84 30.70
1921 0.28 1.54 3.36 3.18 1.85 3.94 2.49 3.43 4.64 2.12 2.59 2.04 31.46
1922 1.58 1.91 5.12 2.74 2.53 1.46 1.99 3.36 3.83 1.22 0.78 2.31 28.83
1923 1.94 1.39 2.78 2.11 5.08 2.54 4.14 1.70 1.90 2.01 1.54 3.46 30.59
1924 2.46 2.06 1.93 1.97 3.11 3.15 0.78 1.71 2.61 0.47 0.60 3.54 24.39
1925 1.08 2.10 3.44 1.42 1.21 4.26 6.94 2.81 4.54 4.35 3.52 1.68 37.35
1926 2.23 4.05 2.71 3.04 2.09 2.81 1.24 8.33 5.67 3.11 2.59 1.39 39.26
1927 1.98 1.48 1.53 2.38 5.58 2.30 3.59 1.06 3.44 1.65 5.29 2.39 32.67
1928 1.36 1.34 1.99 1.96 2.57 3.83 4.07 2.02 1.68 1.82 2.69 1.38 26.71
1929 4.27 1.36 2.85 5.65 3.59 2.55 2.65 0.52 1.75 3.99 3.20 4.79 37.17
1930 3.85 1.67 1.98 3.60 3.15 2.70 0.50 0.90 2.97 1.80 1.72 1.10 25.94
1931 1.68 1.40 2.67 1.87 2.32 2.27 1.81 0.84 2.97 2.43 3.56 2.66 26.48
1932 5.02 1.81 2.15 2.08 5.42 1.35 3.11 4.02 4.05 3.78 1.72 3.57 38.08
1933 1.18 1.49 2.25 2.61 3.29 1.19 2.47 2.24 1.94 1.45 1.68 1.38 23.17
1934 1.65 0.47 2.89 2.79 0.58 1.39 1.64 1.84 2.90 1.33 1.67 2.43 21.58
1935 2.33 1.75 1.85 2.39 3.61 4.00 3.57 3.10 1.37 1.24 3.43 1.66 30.30
1936 1.48 2.62 1.28 3.61 0.97 3.87 0.81 1.07 5.90 2.33 1.10 2.04 27.08
1937 3.64 1.64 0.59 5.03 3.07 4.14 7.03 2.51 1.80 2.35 0.97 1.70 34.47
1938 0.87 4.95 4.40 1.86 4.42 2.28 4.26 2.48 1.51 0.94 1.22 1.54 30.73
1939 2.54 4.70 2.38 4.04 0.97 4.70 2.54 1.39 2.70 1.66 0.57 1.02 29.21
1940 1.41 1.29 2.07 2.61 3.59 3.27 1.17 7.51 1.73 2.55 2.75 2.98 32.93