Ohio Valley Climate Region, Precipitation Rankings, August 2013 1901-2000 Inches 1 3.30 3.67 -0.37 44 85 1953 1915 2012 2009 normal 1941 2 8.09 7.67 0.42 77 52 1930 1915 2012 2009 normal 1910 3 13.64 11.92 1.72 100 29 1930 1958 2012 2009 top-third 4 18.76 16.19 2.57 103 26 1936 1915 2012 2010 top-third 5 24.58 20.10 4.48 118 11 1930 2015 2012 2011 top-tenth 6 28.00 23.91 4.09 112 17 1930 2015 2012 2011 top-third 7 30.54 26.58 3.96 106 23 1930 2019 2012 2011 top-third 8 35.12 29.63 5.49 116 13 1936 2019 2012 2011 top-tenth 9 38.80 32.72 6.08 118 10 1936 2019 2012 2008 top-tenth 10 40.06 35.86 4.20 102 26 1936 2019 2012 2011 top-third 11 43.85 38.78 5.07 106 22 1936 2019 2012 2010 top-third 12 49.11 42.24 6.87 119 9 1936 2019 2012 2008 top-tenth 18 66.99 66.13 0.86 60 68 1931 2019 2007 2012 normal 24 89.78 84.47 5.31 88 39 1941 2020 2012 2011 top-third 36 136.83 126.74 10.09 102 24 1941 2020 2012 2011 top-third 48 184.68 168.98 15.70 109 16 1956 2022 2012 2011 top-third 60 231.89 211.20 20.69 115 9 1934 2020 2010 2012 top-tenth