Iowa, Precipitation Rankings, November 2019 1901-2000 Inches 1 1.49 1.75 -0.26 59 70 1976 1931 2017 2018 normal 2 6.27 4.04 2.23 115 14 1910 1931 2017 2018 top-third 3 12.48 7.71 4.77 123 6 1953 1931 2017 2018 top-tenth 4 16.01 11.55 4.46 119 10 1976 2018 2017 2018 top-tenth 5 19.39 15.41 3.98 107 22 1976 1993 2017 2018 top-third 6 23.30 20.04 3.26 101 28 1976 1993 2017 2018 top-third 7 31.51 24.09 7.42 121 8 1976 1993 2017 2018 top-tenth 8 34.54 27.03 7.51 120 9 1910 1993 2017 2018 top-tenth 9 36.73 28.99 7.74 119 10 1910 1993 2017 2018 top-tenth 10 39.07 30.00 9.07 121 8 1910 1993 2017 2018 top-tenth 11 40.35 30.98 9.37 121 8 1910 1993 2017 2018 top-tenth 12 42.45 32.08 10.37 121 7 1910 1993 2017 2018 top-tenth 18 74.35 52.18 22.17 127 1 1956 2019 2018 2019 highest 24 85.82 64.24 21.58 126 1 1956 2019 2018 2019 highest 36 119.31 96.35 22.96 122 4 1957 2010 2018 2010 top-tenth 48 160.60 128.38 32.22 123 2 1958 2010 2018 2010 top-tenth 60 199.52 160.36 39.16 121 3 1956 2010 2018 2011 top-tenth