| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 10.34 | 8.97 | 1.37 |
| Feb | 8.12 | 7.18 | 0.94 |
| Mar | 8.88 | 8.13 | 0.75 |
| Apr | 6.97 | 6.59 | 0.38 |
| May | 4.89 | 4.46 | 0.43 |
| Jun | 3.22 | 3.04 | 0.18 |
| Jul | 0.71 | 0.63 | 0.08 |
| Aug | 0.92 | 0.68 | 0.24 |
| Sep | 2.69 | 2.30 | 0.39 |
| Oct | 6.76 | 5.74 | 1.02 |
| Nov | 11.04 | 9.51 | 1.53 |
| Dec | 12.05 | 10.76 | 1.29 |
76.59 | 67.99 | 8.60 |