Standardized Precipitation Index Table

Extreme Southern Climate Division

Nevada, Climate Division 04

Precipitation Data Table

Time Scale in Months (As of the end of Jul. 2020)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 0.02 0.05 0.05 0.77 3.64 4.31 4.33 5.79 7.69 7.69 7.81 7.91 9.22 14.35 17.92 20.37 23.28 31.35 39.16 46.23
Accumulated Precipitation Departure from Normal (in.) -0.58 -0.65 -0.94 -0.62 1.47 1.16 0.26 1.01 2.42 1.93 1.62 0.96 1.27 4.26 4.02 3.35 2.47 3.61 4.48 4.6
Accumulated Precipitation Percent of Average 3 7 5 55 168 137 106 121 146 133 126 114 116 142 129 120 112 113 113 111
Accumulated Precipitation Percentile (non-exceedance) 2.5 1 0.1 18 90.3 79.5 61.6 72.1 86.1 81.3 77.5 68.8 71.9 90.5 86.6 80.1 72.9 76.8 78.7 76.9
Standardized Precipitation Index -1.96 -2.32 -3.28 -0.91 1.3 0.82 0.29 0.59 1.09 0.89 0.75 0.49 0.58 1.31 1.11 0.84 0.61 0.73 0.8 0.73