| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.93 | 5.06 | -0.13 |
| Feb | 4.29 | 4.35 | -0.06 |
| Mar | 4.85 | 4.97 | -0.12 |
| Apr | 4.57 | 4.79 | -0.22 |
| May | 4.40 | 4.53 | -0.13 |
| Jun | 4.82 | 4.90 | -0.08 |
| Jul | 4.85 | 5.04 | -0.19 |
| Aug | 5.42 | 5.11 | 0.31 |
| Sep | 4.65 | 4.82 | -0.17 |
| Oct | 4.02 | 4.21 | -0.19 |
| Nov | 4.29 | 4.24 | 0.05 |
| Dec | 5.30 | 5.40 | -0.10 |
56.39 | 57.42 | -1.03 |