| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.75 | 4.74 | 0.01 |
| Feb | 4.75 | 4.78 | -0.03 |
| Mar | 4.89 | 4.84 | 0.05 |
| Apr | 4.07 | 4.10 | -0.03 |
| May | 3.94 | 4.07 | -0.13 |
| Jun | 4.43 | 4.31 | 0.12 |
| Jul | 4.82 | 4.77 | 0.05 |
| Aug | 4.32 | 4.41 | -0.09 |
| Sep | 4.04 | 4.07 | -0.03 |
| Oct | 3.53 | 3.55 | -0.02 |
| Nov | 4.15 | 4.21 | -0.06 |
| Dec | 4.66 | 4.71 | -0.05 |
52.35 | 52.56 | -0.21 |