| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.57 | 3.99 | -0.42 |
| Feb | 2.96 | 3.17 | -0.21 |
| Mar | 3.82 | 3.76 | 0.06 |
| Apr | 3.85 | 4.13 | -0.28 |
| May | 4.49 | 4.62 | -0.13 |
| Jun | 4.48 | 4.47 | 0.01 |
| Jul | 3.83 | 4.52 | -0.69 |
| Aug | 3.95 | 3.85 | 0.10 |
| Sep | 4.68 | 5.10 | -0.42 |
| Oct | 3.54 | 3.29 | 0.25 |
| Nov | 3.47 | 3.35 | 0.12 |
| Dec | 3.61 | 3.97 | -0.36 |
46.25 | 48.22 | -1.97 |