| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.23 | 3.38 | -0.15 |
| Feb | 2.95 | 3.00 | -0.05 |
| Mar | 3.78 | 3.83 | -0.05 |
| Apr | 4.05 | 4.07 | -0.02 |
| May | 3.66 | 3.68 | -0.02 |
| Jun | 4.41 | 4.52 | -0.11 |
| Jul | 4.08 | 4.10 | -0.02 |
| Aug | 4.11 | 4.16 | -0.05 |
| Sep | 4.49 | 4.50 | -0.01 |
| Oct | 4.82 | 4.90 | -0.08 |
| Nov | 3.68 | 3.66 | 0.02 |
| Dec | 4.13 | 4.38 | -0.25 |
47.39 | 48.18 | -0.79 |