Contiguous U.S., Precipitation Rankings, December 1904 1901-2000 Inches 1 2.16 2.35 -0.19 42 87 1930 2015 1903 1902 bottom-third 1965 2 3.18 4.58 -1.40 6 123 1976 2015 1904 1903 bottom-tenth 1943 3 4.84 6.74 -1.90 4 125 1917 2015 1904 1903 bottom-tenth 4 7.17 9.23 -2.06 7 122 1939 2018 1903 1902 bottom-tenth 5 9.86 11.85 -1.99 11 118 1917 2018 1904 1903 bottom-tenth 6 12.79 14.62 -1.83 14 115 1917 2018 1904 1903 bottom-third 7 15.90 17.55 -1.65 18 111 1917 2018 1904 1903 bottom-third 8 18.49 20.46 -1.97 20 109 1917 2015 1897 1903 bottom-third 2012 9 20.61 22.98 -2.37 16 113 1956 2015 1904 1903 bottom-third 10 23.71 25.49 -1.78 24 105 1956 2015 1901 1903 bottom-third 11 26.14 27.62 -1.48 29 100 1910 2018 1901 1903 bottom-third 12 27.95 29.94 -1.99 23 106 1910 1973 1901 1903 bottom-third 18 41.12 44.58 -3.46 17 111 1954 2019 1904 1903 bottom-third 24 57.31 59.90 -2.59 26 102 1931 2019 1904 1903 bottom-third 36 87.94 89.86 -1.92 40 87 1956 2019 1903 1902 bottom-third 48 115.57 119.78 -4.21 22 104 1956 2019 1904 1903 bottom-third 60 146.20 149.68 -3.48 33 92 1956 2019 1899 1903 bottom-third