| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.94 | 3.04 | -0.10 |
| Feb | 2.62 | 2.76 | -0.14 |
| Mar | 3.90 | 3.91 | -0.01 |
| Apr | 3.37 | 3.40 | -0.03 |
| May | 4.07 | 4.27 | -0.20 |
| Jun | 4.30 | 4.55 | -0.25 |
| Jul | 4.48 | 4.52 | -0.04 |
| Aug | 4.17 | 4.05 | 0.12 |
| Sep | 4.39 | 4.45 | -0.06 |
| Oct | 3.94 | 4.02 | -0.08 |
| Nov | 3.12 | 3.20 | -0.08 |
| Dec | 3.72 | 3.74 | -0.02 |
45.02 | 45.91 | -0.89 |