Standardized Precipitation Index Table

North Central Climate Division

Utah, Climate Division 03

Precipitation Data Table

Time Scale in Months (As of the end of Sep. 2020)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 0.2 0.27 0.53 2.39 2.98 3.49 4.93 5.79 7.17 8.81 10.34 10.84 13.43 20.32 33.52 38.18 44.42 65.48 81.69 96.61
Accumulated Precipitation Departure from Normal (in.) -0.86 -1.72 -2.25 -1.35 -2.51 -3.78 -4.13 -4.83 -5.05 -4.96 -4.87 -5.84 -6.04 -3.66 0.1 -2.52 -5.71 -1.4 -1.91 -3.75
Accumulated Precipitation Percent of Average 19 14 19 64 54 48 54 55 59 64 68 65 69 85 100 94 89 98 98 96
Accumulated Precipitation Percentile (non-exceedance) 10.7 0.6 0.5 19.8 7.4 2.3 3.1 2 2.7 4.5 5.5 3.6 4.5 20.4 52.8 35.4 21 45.1 43.7 37.7
Standardized Precipitation Index -1.24 -2.48 -2.59 -0.85 -1.45 -2 -1.87 -2.06 -1.92 -1.7 -1.6 -1.8 -1.7 -0.83 0.07 -0.37 -0.81 -0.12 -0.16 -0.31