| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.81 | -0.27 |
| Feb | 3.12 | 3.52 | -0.40 |
| Mar | 4.01 | 4.52 | -0.51 |
| Apr | 4.11 | 4.66 | -0.55 |
| May | 3.55 | 3.63 | -0.08 |
| Jun | 4.28 | 4.27 | 0.01 |
| Jul | 3.89 | 3.81 | 0.08 |
| Aug | 3.74 | 3.93 | -0.19 |
| Sep | 4.15 | 4.27 | -0.12 |
| Oct | 4.66 | 4.94 | -0.28 |
| Nov | 3.88 | 3.98 | -0.10 |
| Dec | 4.15 | 4.68 | -0.53 |
47.08 | 50.02 | -2.94 |