| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.85 | 3.77 | 0.08 |
| Feb | 4.32 | 4.35 | -0.03 |
| Mar | 4.66 | 4.68 | -0.02 |
| Apr | 4.97 | 5.00 | -0.03 |
| May | 5.43 | 5.38 | 0.05 |
| Jun | 4.22 | 4.15 | 0.07 |
| Jul | 4.41 | 4.44 | -0.03 |
| Aug | 3.66 | 3.49 | 0.17 |
| Sep | 3.64 | 3.66 | -0.02 |
| Oct | 3.77 | 3.79 | -0.02 |
| Nov | 3.70 | 3.66 | 0.04 |
| Dec | 4.72 | 4.62 | 0.10 |
51.35 | 50.99 | 0.36 |