| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.35 | 4.28 | 0.07 |
| Feb | 4.69 | 4.65 | 0.04 |
| Mar | 5.11 | 5.06 | 0.05 |
| Apr | 4.98 | 4.90 | 0.08 |
| May | 5.02 | 5.27 | -0.25 |
| Jun | 4.38 | 4.32 | 0.06 |
| Jul | 4.48 | 4.52 | -0.04 |
| Aug | 3.59 | 3.50 | 0.09 |
| Sep | 3.91 | 3.97 | -0.06 |
| Oct | 3.52 | 3.41 | 0.11 |
| Nov | 3.72 | 3.85 | -0.13 |
| Dec | 4.96 | 5.08 | -0.12 |
52.71 | 52.81 | -0.10 |