| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 15 | 18 | 24 | 30 | 36 | 48 | 60 | 72 | |
| Accumulated Precipitation (in.) | 2.84 | 7.62 | 8.9 | 11.27 | 14.25 | 16.1 | 19.76 | 21.96 | 23.94 | 28.33 | 31.52 | 39.49 | 48.73 | 56.27 | 75.11 | 106.41 | 136.58 | 180.79 | 235.69 | 280.85 |
| Accumulated Precipitation Departure from Normal (in.) | -1.09 | -0.15 | -1.9 | -2.93 | -3.8 | -5.55 | -5.66 | -7.56 | -10.19 | -10.59 | -11.49 | -7.64 | -9.21 | -12.59 | -19.24 | -9.74 | -5.11 | -8.04 | -0.24 | -2.14 |
| Accumulated Precipitation Percent of Average | 72 | 98 | 82 | 79 | 79 | 74 | 78 | 74 | 70 | 73 | 73 | 84 | 84 | 82 | 80 | 92 | 96 | 96 | 100 | 99 |
| Accumulated Precipitation Percentile (non-exceedance) | 27 | 51.7 | 25.5 | 18 | 15.1 | 8.6 | 11.7 | 6.8 | 3.5 | 3.8 | 3.7 | 14.1 | 11 | 6.5 | 3.4 | 20.7 | 36.6 | 31.8 | 50.5 | 46.9 |
| Standardized Precipitation Index | -0.61 | 0.04 | -0.66 | -0.91 | -1.03 | -1.36 | -1.19 | -1.49 | -1.81 | -1.77 | -1.79 | -1.08 | -1.23 | -1.52 | -1.82 | -0.82 | -0.34 | -0.47 | 0.01 | -0.08 |