| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.18 | 3.35 | -0.17 |
| Feb | 2.21 | 2.58 | -0.37 |
| Mar | 2.69 | 2.96 | -0.27 |
| Apr | 3.45 | 3.41 | 0.04 |
| May | 3.28 | 3.44 | -0.16 |
| Jun | 3.59 | 3.52 | 0.07 |
| Jul | 3.84 | 3.65 | 0.19 |
| Aug | 3.44 | 3.46 | -0.02 |
| Sep | 4.08 | 4.05 | 0.03 |
| Oct | 4.05 | 4.33 | -0.28 |
| Nov | 3.52 | 3.92 | -0.40 |
| Dec | 3.57 | 3.82 | -0.25 |
40.90 | 42.49 | -1.59 |