| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.59 | 4.77 | -0.18 |
| Feb | 4.27 | 4.45 | -0.18 |
| Mar | 5.05 | 5.07 | -0.02 |
| Apr | 4.96 | 5.10 | -0.14 |
| May | 4.43 | 4.49 | -0.06 |
| Jun | 4.41 | 4.51 | -0.10 |
| Jul | 3.52 | 3.50 | 0.02 |
| Aug | 3.36 | 3.29 | 0.07 |
| Sep | 3.52 | 3.62 | -0.10 |
| Oct | 4.58 | 4.70 | -0.12 |
| Nov | 4.25 | 4.39 | -0.14 |
| Dec | 4.95 | 5.17 | -0.22 |
51.89 | 53.06 | -1.17 |