| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.69 | 4.70 | -0.01 |
| Feb | 5.07 | 5.10 | -0.03 |
| Mar | 5.44 | 5.32 | 0.12 |
| Apr | 5.32 | 5.34 | -0.02 |
| May | 5.19 | 5.68 | -0.49 |
| Jun | 4.85 | 4.80 | 0.05 |
| Jul | 4.71 | 5.03 | -0.32 |
| Aug | 3.81 | 3.86 | -0.05 |
| Sep | 4.11 | 4.01 | 0.10 |
| Oct | 3.97 | 3.93 | 0.04 |
| Nov | 4.08 | 3.95 | 0.13 |
| Dec | 5.66 | 5.60 | 0.06 |
56.90 | 57.32 | -0.42 |