| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.52 | 2.49 | 0.03 |
| Feb | 2.01 | 2.06 | -0.05 |
| Mar | 2.63 | 2.64 | -0.01 |
| Apr | 3.83 | 3.71 | 0.12 |
| May | 4.50 | 4.49 | 0.01 |
| Jun | 4.39 | 4.21 | 0.18 |
| Jul | 4.18 | 4.08 | 0.10 |
| Aug | 3.90 | 3.83 | 0.07 |
| Sep | 3.13 | 3.06 | 0.07 |
| Oct | 2.94 | 2.82 | 0.12 |
| Nov | 2.99 | 2.96 | 0.03 |
| Dec | 2.38 | 2.35 | 0.03 |
39.40 | 38.70 | 0.70 |