| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.78 | 0.72 | 0.06 |
| Feb | 0.81 | 0.84 | -0.03 |
| Mar | 1.46 | 1.48 | -0.02 |
| Apr | 2.72 | 2.74 | -0.02 |
| May | 3.91 | 3.80 | 0.11 |
| Jun | 4.38 | 4.35 | 0.03 |
| Jul | 4.39 | 4.38 | 0.01 |
| Aug | 4.01 | 4.08 | -0.07 |
| Sep | 3.33 | 3.31 | 0.02 |
| Oct | 2.92 | 2.95 | -0.03 |
| Nov | 1.62 | 1.55 | 0.07 |
| Dec | 1.10 | 1.11 | -0.01 |
31.43 | 31.31 | 0.12 |