| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.57 | 0.55 | 0.02 |
| Feb | 0.76 | 0.73 | 0.03 |
| Mar | 1.52 | 1.54 | -0.02 |
| Apr | 2.97 | 3.04 | -0.07 |
| May | 3.84 | 3.96 | -0.12 |
| Jun | 4.33 | 4.38 | -0.05 |
| Jul | 3.16 | 3.53 | -0.37 |
| Aug | 3.25 | 3.04 | 0.21 |
| Sep | 2.97 | 2.99 | -0.02 |
| Oct | 2.34 | 2.49 | -0.15 |
| Nov | 1.23 | 1.27 | -0.04 |
| Dec | 0.89 | 0.82 | 0.07 |
27.83 | 28.34 | -0.51 |