| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.56 | -0.08 |
| Feb | 2.87 | 2.94 | -0.07 |
| Mar | 4.15 | 4.13 | 0.02 |
| Apr | 3.71 | 3.84 | -0.13 |
| May | 3.98 | 3.93 | 0.05 |
| Jun | 4.27 | 4.49 | -0.22 |
| Jul | 4.76 | 4.81 | -0.05 |
| Aug | 4.34 | 4.44 | -0.10 |
| Sep | 3.98 | 4.09 | -0.11 |
| Oct | 4.11 | 4.04 | 0.07 |
| Nov | 3.23 | 3.32 | -0.09 |
| Dec | 4.27 | 4.35 | -0.08 |
47.15 | 47.94 | -0.79 |