| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.47 | 4.30 | 0.17 |
| Feb | 4.70 | 4.52 | 0.18 |
| Mar | 5.19 | 5.06 | 0.13 |
| Apr | 4.91 | 4.82 | 0.09 |
| May | 4.90 | 5.17 | -0.27 |
| Jun | 4.96 | 5.04 | -0.08 |
| Jul | 5.60 | 5.87 | -0.27 |
| Aug | 3.96 | 3.92 | 0.04 |
| Sep | 3.66 | 3.73 | -0.07 |
| Oct | 3.04 | 3.02 | 0.02 |
| Nov | 3.82 | 3.71 | 0.11 |
| Dec | 5.35 | 5.74 | -0.39 |
54.56 | 54.90 | -0.34 |