| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 15 | 18 | 24 | 30 | 36 | 48 | 60 | 72 | |
| Accumulated Precipitation (in.) | 5.35 | 9.43 | 14.14 | 17.65 | 20.84 | 25.26 | 27.6 | 33.49 | 39.45 | 43.1 | 49.52 | 51.81 | 64.66 | 73.25 | 100.9 | 119.31 | 146.25 | 194.6 | 236.15 | 276.12 |
| Accumulated Precipitation Departure from Normal (in.) | 1.54 | 2.11 | 4.59 | 5.36 | 5.64 | 6.94 | 6.43 | 9.07 | 11.55 | 11.23 | 13.45 | 11.49 | 14.83 | 14.58 | 20.26 | 20.42 | 25.44 | 33.67 | 35.17 | 35.03 |
| Accumulated Precipitation Percent of Average | 141 | 129 | 148 | 144 | 137 | 138 | 130 | 137 | 141 | 135 | 137 | 128 | 130 | 125 | 125 | 121 | 121 | 121 | 117 | 115 |
| Accumulated Precipitation Percentile (non-exceedance) | 84 | 82 | 94.3 | 94.1 | 94.3 | 95.5 | 93.6 | 96.9 | 98.5 | 97.2 | 98.1 | 95.8 | 98 | 96.9 | 98.4 | 97.8 | 98.6 | 99.3 | 99 | 98.1 |
| Standardized Precipitation Index | 0.99 | 0.92 | 1.58 | 1.57 | 1.58 | 1.7 | 1.52 | 1.87 | 2.17 | 1.92 | 2.08 | 1.73 | 2.05 | 1.86 | 2.13 | 2.02 | 2.2 | 2.46 | 2.32 | 2.09 |