| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.49 | 4.53 | -0.04 |
| Feb | 4.41 | 4.61 | -0.20 |
| Mar | 4.79 | 5.14 | -0.35 |
| Apr | 4.12 | 4.33 | -0.21 |
| May | 3.15 | 3.39 | -0.24 |
| Jun | 4.29 | 4.36 | -0.07 |
| Jul | 4.59 | 4.83 | -0.24 |
| Aug | 4.55 | 4.50 | 0.05 |
| Sep | 3.58 | 3.51 | 0.07 |
| Oct | 2.84 | 3.02 | -0.18 |
| Nov | 3.81 | 3.97 | -0.16 |
| Dec | 4.95 | 5.02 | -0.07 |
49.57 | 51.21 | -1.64 |