| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.59 | -0.04 |
| Feb | 3.11 | 2.96 | 0.15 |
| Mar | 3.97 | 4.00 | -0.03 |
| Apr | 3.57 | 3.56 | 0.01 |
| May | 3.75 | 3.68 | 0.07 |
| Jun | 4.46 | 4.41 | 0.05 |
| Jul | 5.04 | 5.35 | -0.31 |
| Aug | 5.15 | 5.05 | 0.10 |
| Sep | 5.49 | 5.57 | -0.08 |
| Oct | 3.33 | 3.31 | 0.02 |
| Nov | 3.39 | 3.34 | 0.05 |
| Dec | 3.52 | 3.44 | 0.08 |
48.33 | 48.26 | 0.07 |