| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.59 | 0.63 | -0.04 |
| Feb | 0.77 | 0.79 | -0.02 |
| Mar | 1.40 | 1.44 | -0.04 |
| Apr | 2.78 | 2.90 | -0.12 |
| May | 3.68 | 3.72 | -0.04 |
| Jun | 4.59 | 4.54 | 0.05 |
| Jul | 3.45 | 3.44 | 0.01 |
| Aug | 3.30 | 3.40 | -0.10 |
| Sep | 2.96 | 3.01 | -0.05 |
| Oct | 2.22 | 2.23 | -0.01 |
| Nov | 1.17 | 1.24 | -0.07 |
| Dec | 0.81 | 0.89 | -0.08 |
27.72 | 28.23 | -0.51 |