| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 15 | 18 | 24 | 30 | 36 | 48 | 60 | 72 | |
| Accumulated Precipitation (in.) | 9.46 | 13.04 | 21.83 | 25.89 | 28.71 | 29.88 | 30.76 | 31.66 | 35.38 | 39.93 | 43.43 | 49.9 | 68.26 | 82 | 116.33 | 139.1 | 188.37 | 254.68 | 326.2 | 392.91 |
| Accumulated Precipitation Departure from Normal (in.) | 3.46 | 1.64 | 4.92 | 3.28 | 2.05 | 0.1 | -2.77 | -6.77 | -8.75 | -8.82 | -10.05 | -8.94 | -7.45 | -6.63 | -1.43 | -8.52 | 11.66 | 19 | 31.62 | 39.4 |
| Accumulated Precipitation Percent of Average | 158 | 114 | 129 | 115 | 108 | 100 | 92 | 82 | 80 | 82 | 81 | 85 | 90 | 93 | 99 | 94 | 107 | 108 | 111 | 111 |
| Accumulated Precipitation Percentile (non-exceedance) | 87.5 | 69.6 | 85.2 | 74.9 | 65.5 | 53.5 | 36.3 | 17.1 | 10.6 | 11.8 | 10.4 | 16.5 | 24.6 | 29.2 | 47.2 | 29.3 | 76.3 | 83.6 | 92.1 | 94.6 |
| Standardized Precipitation Index | 1.15 | 0.51 | 1.05 | 0.67 | 0.4 | 0.09 | -0.35 | -0.95 | -1.25 | -1.18 | -1.26 | -0.97 | -0.69 | -0.55 | -0.07 | -0.54 | 0.72 | 0.98 | 1.41 | 1.61 |