Contiguous U.S., Precipitation Rankings, March 1973 1901-2000 Inches 1 4.00 2.51 1.49 128 1 1910 1973 1972 1973 highest 2 5.96 4.64 1.32 123 6 1910 1998 1972 1903 top-tenth 3 8.44 6.96 1.48 123 6 1910 1998 1972 1897 top-tenth 4 11.46 9.30 2.16 125 3 1981 1983,1998 1972 1973 top-tenth 5 14.51 11.53 2.98 126 2 1977 1983 1972 1973 top-tenth 1998 6 17.26 13.70 3.56 125 3 1918 1983 1972 1973 top-tenth 7 20.00 16.19 3.81 126 2 1918 2019 1972 1973 top-tenth 8 22.64 18.82 3.82 126 2 1918 2019 1972 1973 top-tenth 9 25.57 21.60 3.97 125 3 1918 2019 1972 1973 top-tenth 10 28.67 24.53 4.14 125 3 1918 2019 1972 1973 top-tenth 11 31.62 27.43 4.19 123 5 1918 2019 1972 1973 top-tenth 12 33.88 29.96 3.92 118 10 1918 2016 1972 1958 top-tenth 18 48.10 43.68 4.42 116 11 1918 2020 1972 1973 top-tenth 24 63.99 59.92 4.07 108 19 1955 2020 1972 1959 top-third 36 93.77 89.87 3.90 98 28 1955 2020 1972 1960 top-third 48 123.67 119.76 3.91 94 31 1957 2019 1972 1961 top-third 60 155.38 149.62 5.76 99 25 1957 2020 1972 1946 top-third