| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.96 | 4.78 | 0.18 |
| Feb | 4.12 | 4.10 | 0.02 |
| Mar | 4.92 | 4.87 | 0.05 |
| Apr | 4.77 | 4.79 | -0.02 |
| May | 4.76 | 4.78 | -0.02 |
| Jun | 4.69 | 4.92 | -0.23 |
| Jul | 5.03 | 5.10 | -0.07 |
| Aug | 5.04 | 5.41 | -0.37 |
| Sep | 5.08 | 4.89 | 0.19 |
| Oct | 4.46 | 4.28 | 0.18 |
| Nov | 4.41 | 4.35 | 0.06 |
| Dec | 5.21 | 5.31 | -0.10 |
57.45 | 57.58 | -0.13 |