| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.29 | 0.31 | -0.02 |
| Feb | 0.44 | 0.48 | -0.04 |
| Mar | 0.84 | 0.86 | -0.02 |
| Apr | 1.87 | 1.87 | 0.00 |
| May | 2.78 | 2.84 | -0.06 |
| Jun | 2.79 | 2.82 | -0.03 |
| Jul | 2.69 | 2.70 | -0.01 |
| Aug | 2.33 | 2.35 | -0.02 |
| Sep | 1.38 | 1.35 | 0.03 |
| Oct | 1.26 | 1.21 | 0.05 |
| Nov | 0.48 | 0.49 | -0.01 |
| Dec | 0.37 | 0.41 | -0.04 |
17.52 | 17.69 | -0.17 |