| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.90 | 4.20 | -0.30 |
| Feb | 3.20 | 3.35 | -0.15 |
| Mar | 3.53 | 4.25 | -0.72 |
| Apr | 4.19 | 4.79 | -0.60 |
| May | 4.82 | 5.23 | -0.41 |
| Jun | 5.16 | 5.74 | -0.58 |
| Jul | 4.78 | 4.90 | -0.12 |
| Aug | 4.45 | 5.06 | -0.61 |
| Sep | 4.42 | 4.90 | -0.48 |
| Oct | 5.08 | 5.71 | -0.63 |
| Nov | 4.18 | 4.84 | -0.66 |
| Dec | 4.31 | 4.87 | -0.56 |
52.02 | 57.84 | -5.82 |