| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.35 | 4.28 | 0.07 |
| Feb | 4.04 | 4.09 | -0.05 |
| Mar | 4.44 | 4.40 | 0.04 |
| Apr | 3.49 | 3.36 | 0.13 |
| May | 2.79 | 2.84 | -0.05 |
| Jun | 4.59 | 4.68 | -0.09 |
| Jul | 4.63 | 4.74 | -0.11 |
| Aug | 5.07 | 4.89 | 0.18 |
| Sep | 3.82 | 3.86 | -0.04 |
| Oct | 2.70 | 2.68 | 0.02 |
| Nov | 2.85 | 2.85 | 0.00 |
| Dec | 4.38 | 4.19 | 0.19 |
47.15 | 46.86 | 0.29 |