| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.57 | 2.59 | -0.02 |
| Feb | 2.15 | 2.12 | 0.03 |
| Mar | 2.54 | 2.52 | 0.02 |
| Apr | 3.71 | 3.72 | -0.01 |
| May | 4.37 | 4.28 | 0.09 |
| Jun | 4.66 | 4.45 | 0.21 |
| Jul | 4.17 | 4.16 | 0.01 |
| Aug | 4.03 | 3.90 | 0.13 |
| Sep | 3.13 | 3.09 | 0.04 |
| Oct | 3.05 | 3.02 | 0.03 |
| Nov | 2.89 | 2.98 | -0.09 |
| Dec | 2.38 | 2.39 | -0.01 |
39.65 | 39.22 | 0.43 |