| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.37 | 3.34 | 0.03 |
| Feb | 2.79 | 2.68 | 0.11 |
| Mar | 3.93 | 4.12 | -0.19 |
| Apr | 3.43 | 3.45 | -0.02 |
| May | 3.79 | 3.89 | -0.10 |
| Jun | 4.61 | 4.36 | 0.25 |
| Jul | 4.82 | 5.15 | -0.33 |
| Aug | 4.79 | 4.82 | -0.03 |
| Sep | 4.44 | 5.12 | -0.68 |
| Oct | 3.97 | 4.16 | -0.19 |
| Nov | 3.06 | 2.95 | 0.11 |
| Dec | 3.57 | 3.61 | -0.04 |
46.57 | 47.65 | -1.08 |