Standardized Precipitation Index Table

Southwestern Mountains Climate Division

New Mexico, Climate Division 04

Precipitation Data Table

Time Scale in Months (As of the end of May 2025)
1 2 3 4 5 6 7 8 9 10 11 12 15 18 24 30 36 48 60 72
Accumulated Precipitation (in.) 0.4 0.67 1.02 1.16 1.41 1.43 2.27 2.98 3.76 5.89 8.79 10.53 12.61 16.21 22.08 27.71 43.96 55.86 64.2 77.74
Accumulated Precipitation Departure from Normal (in.) -0.15 -0.49 -0.99 -1.68 -2.27 -3.26 -3.15 -3.58 -4.6 -5.3 -5.06 -4.05 -3.99 -3.09 -7.12 -6.19 0.14 -2.51 -8.76 -9.88
Accumulated Precipitation Percent of Average 73 58 51 41 38 31 42 45 45 53 63 72 76 84 76 82 100 96 88 89
Accumulated Precipitation Percentile (non-exceedance) 51.8 32 19.6 9.8 6.6 2.1 5.9 6.6 3.3 3.2 5.2 11.8 14.9 23.4 6.8 13.3 52.8 38.8 16.4 16.3
Standardized Precipitation Index 0.04 -0.47 -0.86 -1.29 -1.51 -2.03 -1.56 -1.51 -1.84 -1.85 -1.63 -1.19 -1.04 -0.72 -1.49 -1.11 0.07 -0.29 -0.98 -0.98