| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.82 | 3.91 | -0.09 |
| Feb | 2.93 | 3.24 | -0.31 |
| Mar | 4.49 | 4.82 | -0.33 |
| Apr | 3.63 | 3.64 | -0.01 |
| May | 3.57 | 3.72 | -0.15 |
| Jun | 3.83 | 4.11 | -0.28 |
| Jul | 4.71 | 4.49 | 0.22 |
| Aug | 4.59 | 4.62 | -0.03 |
| Sep | 3.97 | 4.12 | -0.15 |
| Oct | 4.05 | 4.29 | -0.24 |
| Nov | 3.27 | 3.52 | -0.25 |
| Dec | 4.53 | 4.82 | -0.29 |
47.39 | 49.30 | -1.91 |