| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.74 | 3.91 | -0.17 |
| Feb | 4.20 | 4.24 | -0.04 |
| Mar | 4.84 | 4.94 | -0.10 |
| Apr | 4.92 | 5.01 | -0.09 |
| May | 5.30 | 5.41 | -0.11 |
| Jun | 4.73 | 4.75 | -0.02 |
| Jul | 4.46 | 4.55 | -0.09 |
| Aug | 3.57 | 3.59 | -0.02 |
| Sep | 3.73 | 3.77 | -0.04 |
| Oct | 3.85 | 3.94 | -0.09 |
| Nov | 3.80 | 3.82 | -0.02 |
| Dec | 4.64 | 4.79 | -0.15 |
51.78 | 52.72 | -0.94 |