| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.70 | 4.66 | 0.04 |
| Feb | 4.64 | 4.61 | 0.03 |
| Mar | 4.97 | 4.72 | 0.25 |
| Apr | 3.94 | 3.95 | -0.01 |
| May | 3.68 | 3.95 | -0.27 |
| Jun | 4.50 | 4.64 | -0.14 |
| Jul | 4.70 | 4.72 | -0.02 |
| Aug | 4.37 | 4.72 | -0.35 |
| Sep | 4.21 | 4.12 | 0.09 |
| Oct | 3.55 | 3.49 | 0.06 |
| Nov | 4.08 | 4.14 | -0.06 |
| Dec | 4.58 | 4.68 | -0.10 |
51.92 | 52.40 | -0.48 |