| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.59 | -0.16 |
| Feb | 2.87 | 2.84 | 0.03 |
| Mar | 4.05 | 3.84 | 0.21 |
| Apr | 3.45 | 3.55 | -0.10 |
| May | 3.72 | 3.81 | -0.09 |
| Jun | 4.34 | 4.33 | 0.01 |
| Jul | 5.38 | 4.94 | 0.44 |
| Aug | 5.11 | 5.57 | -0.46 |
| Sep | 5.17 | 5.11 | 0.06 |
| Oct | 3.87 | 4.47 | -0.60 |
| Nov | 3.15 | 3.35 | -0.20 |
| Dec | 3.43 | 3.51 | -0.08 |
47.97 | 48.91 | -0.94 |