| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.71 | 3.83 | -0.12 |
| Feb | 4.20 | 4.24 | -0.04 |
| Mar | 4.79 | 4.83 | -0.04 |
| Apr | 4.95 | 4.99 | -0.04 |
| May | 5.26 | 5.32 | -0.06 |
| Jun | 4.71 | 4.68 | 0.03 |
| Jul | 4.38 | 4.55 | -0.17 |
| Aug | 3.61 | 3.57 | 0.04 |
| Sep | 3.75 | 3.71 | 0.04 |
| Oct | 3.94 | 3.98 | -0.04 |
| Nov | 3.72 | 3.79 | -0.07 |
| Dec | 4.58 | 4.72 | -0.14 |
51.60 | 52.21 | -0.61 |