| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 11.53 | 14.48 | -2.95 |
| Feb | 9.62 | 13.39 | -3.77 |
| Mar | 8.78 | 12.67 | -3.89 |
| Apr | 5.03 | 6.33 | -1.30 |
| May | 2.33 | 3.12 | -0.79 |
| Jun | 0.75 | 1.24 | -0.49 |
| Jul | 0.05 | 0.09 | -0.04 |
| Aug | 0.15 | 0.16 | -0.01 |
| Sep | 0.56 | 1.06 | -0.50 |
| Oct | 3.49 | 3.56 | -0.07 |
| Nov | 7.51 | 8.10 | -0.59 |
| Dec | 13.28 | 15.43 | -2.15 |
63.08 | 79.63 | -16.55 |