| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.57 | 0.59 | -0.02 |
| Feb | 0.82 | 0.77 | 0.05 |
| Mar | 1.45 | 1.41 | 0.04 |
| Apr | 2.93 | 2.96 | -0.03 |
| May | 3.84 | 3.74 | 0.10 |
| Jun | 4.56 | 4.35 | 0.21 |
| Jul | 3.35 | 3.30 | 0.05 |
| Aug | 3.37 | 3.35 | 0.02 |
| Sep | 2.96 | 2.85 | 0.11 |
| Oct | 2.29 | 2.29 | 0.00 |
| Nov | 1.20 | 1.19 | 0.01 |
| Dec | 0.83 | 0.85 | -0.02 |
28.17 | 27.65 | 0.52 |