Ohio Valley Climate Region, Precipitation Rankings, December 1947 1901-2000 Inches 1 1.90 3.11 -1.21 21 108 1958 1990 1943 1946 bottom-third 2 4.68 6.23 -1.55 23 106 1976 2015 1943 1946 bottom-third 1908 3 7.37 9.13 -1.76 30 99 1963 1990 1944 1946 bottom-third 1964 4 10.76 12.60 -1.84 32 97 1963 1926 1944 1946 bottom-third 5 13.94 16.27 -2.33 24 105 1953 1926 1943 1946 bottom-third 6 16.97 20.27 -3.30 18 111 1953 1926 1943 1946 bottom-third 7 22.80 24.52 -1.72 38 91 1953 2015 1944 1946 bottom-third 8 27.61 28.79 -1.18 46 83 1953 2015 1944 1946 normal 9 33.13 32.70 0.43 62 67 1930 2015 1946 1945 normal 10 35.62 36.51 -0.89 49 80 1930 2011 1946 1945 normal 11 36.26 39.19 -2.93 33 96 1930 2011 1943 1946 bottom-third 1966 12 40.30 42.23 -1.93 38 91 1930 2019 1944 1946 bottom-third 18 59.73 62.51 -2.78 30 98 1953 2019 1944 1946 bottom-third 24 82.32 84.45 -2.13 36 92 1953 2019 1944 1946 bottom-third 36 132.31 126.69 5.62 85 42 1954 2020 1946 1929 top-third 48 171.85 168.95 2.90 71 55 1955 2021 1946 1945 normal 60 209.50 211.20 -1.70 45 80 1956 2021 1945 1946 normal