| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.07 | 1.06 | 0.01 |
| Feb | 1.06 | 1.02 | 0.04 |
| Mar | 1.87 | 1.77 | 0.10 |
| Apr | 3.88 | 3.83 | 0.05 |
| May | 4.71 | 4.64 | 0.07 |
| Jun | 5.49 | 5.55 | -0.06 |
| Jul | 4.20 | 4.08 | 0.12 |
| Aug | 4.41 | 4.35 | 0.06 |
| Sep | 3.77 | 3.84 | -0.07 |
| Oct | 2.77 | 2.72 | 0.05 |
| Nov | 1.87 | 1.79 | 0.08 |
| Dec | 1.35 | 1.25 | 0.10 |
36.45 | 35.90 | 0.55 |