Northwest Climate Region, Precipitation Rankings, December 1948 1901-2000 Inches 1 6.05 4.63 1.42 106 23 1976 1964 1947 1942 top-third 2 11.21 8.97 2.24 106 23 1976 1996 1947 1945 top-third 1970 3 12.91 11.51 1.40 84 45 1976 1996 1947 1946 normal 4 14.82 12.93 1.89 89 40 1976 1996 1947 1945 top-third 5 15.84 13.73 2.11 93 36 1936 1996 1947 1945 top-third 6 17.05 14.46 2.59 102 27 1936 1996 1947 1942 top-third 7 19.83 16.18 3.65 110 19 1976 1996 1947 1942 top-third 1982 8 23.87 18.32 5.55 118 11 1935 1996 1947 1941 top-tenth 9 27.26 20.67 6.59 125 4 1976 1996 1947 1948 top-tenth 10 30.25 23.93 6.32 122 7 1976 1996 1947 1948 top-tenth 11 34.80 27.54 7.26 125 4 1935 1996 1947 1948 top-tenth 12 39.06 32.07 6.99 122 7 1929 1996 1947 1896 top-tenth 18 54.65 46.58 8.07 120 8 1929 1996 1947 1948 top-tenth 24 70.01 64.19 5.82 110 18 1930 1996 1947 1907 top-third 36 103.24 96.33 6.91 109 18 1930 1997 1947 1904 top-third 48 139.67 128.33 11.34 115 11 1931 1998 1947 1948 top-tenth 60 164.45 160.34 4.11 87 38 1932 1999 1947 1910 top-third