| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.70 | 2.74 | -0.04 |
| Feb | 2.24 | 2.28 | -0.04 |
| Mar | 3.34 | 3.12 | 0.22 |
| Apr | 3.53 | 3.49 | 0.04 |
| May | 4.23 | 4.32 | -0.09 |
| Jun | 4.03 | 3.94 | 0.09 |
| Jul | 3.84 | 3.49 | 0.35 |
| Aug | 3.22 | 3.24 | -0.02 |
| Sep | 3.73 | 3.72 | 0.01 |
| Oct | 3.08 | 3.05 | 0.03 |
| Nov | 2.82 | 2.79 | 0.03 |
| Dec | 3.07 | 2.92 | 0.15 |
39.83 | 39.10 | 0.73 |