| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.75 | 4.13 | -0.38 |
| Feb | 3.32 | 3.66 | -0.34 |
| Mar | 4.82 | 5.39 | -0.57 |
| Apr | 4.31 | 4.75 | -0.44 |
| May | 3.47 | 3.64 | -0.17 |
| Jun | 3.63 | 3.94 | -0.31 |
| Jul | 3.08 | 3.20 | -0.12 |
| Aug | 3.68 | 4.02 | -0.34 |
| Sep | 3.87 | 4.02 | -0.15 |
| Oct | 4.55 | 4.84 | -0.29 |
| Nov | 3.95 | 4.31 | -0.36 |
| Dec | 4.65 | 5.17 | -0.52 |
47.08 | 51.07 | -3.99 |