| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.42 | 0.49 | -0.07 |
| Feb | 0.66 | 0.73 | -0.07 |
| Mar | 1.24 | 1.31 | -0.07 |
| Apr | 2.29 | 2.36 | -0.07 |
| May | 3.68 | 3.58 | 0.10 |
| Jun | 3.41 | 3.45 | -0.04 |
| Jul | 3.88 | 3.53 | 0.35 |
| Aug | 3.01 | 3.11 | -0.10 |
| Sep | 1.81 | 1.91 | -0.10 |
| Oct | 1.87 | 1.90 | -0.03 |
| Nov | 0.90 | 0.94 | -0.04 |
| Dec | 0.65 | 0.73 | -0.08 |
23.82 | 24.04 | -0.22 |