| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.66 | 3.84 | -0.18 |
| Feb | 2.90 | 3.30 | -0.40 |
| Mar | 4.28 | 4.52 | -0.24 |
| Apr | 4.26 | 4.50 | -0.24 |
| May | 3.81 | 3.68 | 0.13 |
| Jun | 4.34 | 4.31 | 0.03 |
| Jul | 3.77 | 3.89 | -0.12 |
| Aug | 4.25 | 4.18 | 0.07 |
| Sep | 4.35 | 4.50 | -0.15 |
| Oct | 4.74 | 4.71 | 0.03 |
| Nov | 4.08 | 4.04 | 0.04 |
| Dec | 4.43 | 4.78 | -0.35 |
48.87 | 50.25 | -1.38 |