Northwest Climate Region, Precipitation Rankings, January 1931 1901-2000 Inches 1 3.63 4.53 -0.90 46 84 1985 1953 1930 1928 normal 1941 2 5.30 9.17 -3.87 8 121 1977 1965 1915 1930 bottom-tenth 3 7.87 13.53 -5.66 6 123 1977 1974 1915 1930 bottom-tenth 4 10.06 16.08 -6.02 7 122 1977 1997 1931 1930 bottom-tenth 5 11.67 17.50 -5.83 7 122 1977 1974 1930 1929 bottom-tenth 6 12.39 18.31 -5.92 7 122 1977 1974 1930 1929 bottom-tenth 7 12.60 19.04 -6.44 6 123 1977 1956 1930 1929 bottom-tenth 8 13.67 20.76 -7.09 4 125 1977 1956 1931 1930 bottom-tenth 9 16.00 22.91 -6.91 7 122 1977 1997 1930 1928 bottom-tenth 10 18.25 25.27 -7.02 5 124 1977 1997 1930 1929 bottom-tenth 11 20.31 28.53 -8.22 4 125 1977 1997 1931 1930 bottom-tenth 12 24.59 32.13 -7.54 6 123 1977 1997 1930 1929 bottom-tenth 18 36.19 50.47 -14.28 2 126 1930 1997 1930 1929 bottom-tenth 24 46.34 64.28 -17.94 1 127 1931 1997 1931 1930 lowest 36 71.23 96.31 -25.08 1 126 1931 1998 1931 1930 lowest 48 107.21 128.35 -21.14 2 124 1932 1999 1931 1930 bottom-tenth 60 139.14 160.30 -21.16 3 122 1933 2000 1931 1930 bottom-tenth