Colorado, Precipitation Rankings, April 1938 1901-2000 Inches 1 2.23 1.84 0.39 97 32 2002 1900 1937 1935 top-third 2 5.02 3.35 1.67 120 9 2002 1906 1937 1906 top-tenth 3 6.19 4.44 1.75 122 7 2002 1905 1937 1906 top-tenth 4 7.24 5.51 1.73 120 9 2002 1905 1937 1906 top-tenth 5 8.68 6.58 2.10 117 11 2002 1905 1937 1914 top-tenth 6 9.54 7.65 1.89 113 15 1904 1984 1937 1920 top-third 7 10.54 8.98 1.56 105 23 2002 1942 1937 1920 top-third 8 11.79 10.41 1.38 96 32 1902,2002 1942 1937 1924 top-third 9 13.32 12.42 0.90 82 46 2002 1942 1937 1926 normal 10 15.21 14.52 0.69 80 48 1902 1942 1937 1930 normal 11 17.05 16.07 0.98 86 42 1981 1942 1937 1928 top-third 12 18.34 18.08 0.26 70 58 2013 1942 1937 1931 normal 1931 18 25.01 25.76 -0.75 53 74 2013 1942 1937 1930 normal 24 35.96 36.16 -0.20 63 64 1902 1942 1937 1931 normal 36 52.62 54.22 -1.60 45 81 1955 1985 1937 1932 normal 1966 48 66.70 72.24 -5.54 25 100 1904 1986 1937 1933 bottom-third 60 82.61 90.24 -7.63 21 103 1957 1987 1937 1934 bottom-third