Colorado, Precipitation Rankings, January 1987 1901-2000 Inches 1 1.11 1.06 0.05 83 47 1919,1931 1916 1986 1982 normal 1945 2 1.70 2.13 -0.43 34 95 1931 1914 1986 1985 bottom-third 1999,2021 3 3.48 3.20 0.28 92 37 1904 1979 1985 1986 top-third 4 5.60 4.54 1.06 110 19 1977 1909 1986 1985 top-third 5 7.66 5.96 1.70 114 15 1904 1942 1986 1973 top-third 6 9.79 7.98 1.81 112 17 1901 1942 1986 1985 top-third 7 12.12 10.08 2.04 115 14 1901 2007 1986 1985 top-third 8 14.20 11.62 2.58 119 10 1901,1981 1942 1986 1985 top-tenth 9 15.70 13.64 2.06 111 18 1901 1942 1986 1984 top-third 10 18.04 15.52 2.52 114 15 1940 1942 1986 1984 top-third 11 19.06 17.02 2.04 107 22 2021 1942 1986 1985 top-third 12 20.60 18.10 2.50 109 20 2003 1942 1986 1985 top-third 18 29.08 26.08 3.00 109 19 2003 1942 1983 1986 top-third 24 40.45 36.16 4.29 115 13 2003 1943 1983 1986 top-tenth 2017 36 61.38 54.20 7.18 121 6 1977 1943 1984 1986 top-tenth 48 83.35 72.24 11.11 125 1 1957 1987 1986 1987 highest 60 102.44 90.25 12.19 122 3 1957 2000 1986 1987 top-tenth