| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 15 | 18 | 24 | 30 | 36 | 48 | 60 | 72 | |
| Accumulated Precipitation (in.) | 2.23 | 2.43 | 4.21 | 5.66 | 5.89 | 8.76 | 10.64 | 13.42 | 16.36 | 19.56 | 22.58 | 24.82 | 30.41 | 35.27 | 55.14 | 67 | 82.7 | 111.4 | 151.23 | 198.04 |
| Accumulated Precipitation Departure from Normal (in.) | 0.28 | -0.55 | 0.27 | 0.55 | -0.94 | -0.51 | -2.26 | -3.37 | -4.34 | -5.9 | -7.16 | -8.03 | -6.38 | -6.89 | -10.66 | -8.05 | -16.02 | -20.33 | -13.58 | 0.17 |
| Accumulated Precipitation Percent of Average | 114 | 82 | 107 | 111 | 86 | 95 | 82 | 80 | 79 | 77 | 76 | 76 | 83 | 84 | 84 | 89 | 84 | 85 | 92 | 100 |
| Accumulated Precipitation Percentile (non-exceedance) | 66.5 | 37 | 62.1 | 66.8 | 36.9 | 46 | 28.3 | 21.3 | 19 | 13.2 | 10.2 | 8.8 | 16.2 | 16.7 | 11.8 | 20.8 | 6.5 | 5 | 17.9 | 51.5 |
| Standardized Precipitation Index | 0.43 | -0.33 | 0.31 | 0.43 | -0.33 | -0.1 | -0.57 | -0.79 | -0.88 | -1.12 | -1.27 | -1.35 | -0.98 | -0.97 | -1.18 | -0.81 | -1.52 | -1.64 | -0.92 | 0.04 |