Southwest Climate Region, Precipitation Rankings, May 1974 1901-2000 Inches 1 0.20 1.11 -0.91 1 128 1974 2015 1974 1973 lowest 2 0.93 2.17 -1.24 5 124 2002 1941 1899 1973 bottom-tenth 3 1.75 3.33 -1.58 8 121 2002 1941 1972 1973 bottom-tenth 4 2.08 4.33 -2.25 3 126 2002 1905 1972 1973 bottom-tenth 5 3.62 5.31 -1.69 17 112 1972 1905 1972 1973 bottom-third 1971 6 4.28 6.32 -2.04 11 117 2002 1905 1972 1973 bottom-tenth 1934,1971 7 5.14 7.21 -2.07 19 109 2002 1941 1972 1973 bottom-third 8 5.53 8.34 -2.81 9 119 2002 1941 1956 1973 bottom-tenth 9 6.47 9.71 -3.24 7 121 2002 1941 1956 1973 bottom-tenth 10 7.59 11.72 -4.13 3 125 2002 1941 1974 1973 bottom-tenth 11 9.68 13.59 -3.91 5 123 2021 1941 1925 1973 bottom-tenth 12 10.57 14.53 -3.96 5 123 2021 1905 1925 1973 bottom-tenth 18 18.57 20.86 -2.29 33 94 2021 1942 1972 1973 bottom-third 24 30.24 29.05 1.19 91 36 2021 1942 1972 1973 top-third 36 42.37 43.54 -1.17 54 72 2022 1907 1972 1973 normal 48 55.00 58.01 -3.01 40 85 1904 1986 1972 1973 bottom-third 1991 60 69.74 72.48 -2.74 47 77 1957 1987 1972 1973 normal