| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.84 | 4.08 | -0.24 |
| Feb | 3.32 | 3.68 | -0.36 |
| Mar | 4.44 | 4.63 | -0.19 |
| Apr | 4.05 | 4.12 | -0.07 |
| May | 3.20 | 3.30 | -0.10 |
| Jun | 3.37 | 3.40 | -0.03 |
| Jul | 2.60 | 2.75 | -0.15 |
| Aug | 3.40 | 3.35 | 0.05 |
| Sep | 3.85 | 3.89 | -0.04 |
| Oct | 4.45 | 4.51 | -0.06 |
| Nov | 4.09 | 4.02 | 0.07 |
| Dec | 4.69 | 4.96 | -0.27 |
45.30 | 46.69 | -1.39 |