| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.37 | 0.35 | 0.02 |
| Feb | 0.47 | 0.53 | -0.06 |
| Mar | 0.93 | 0.98 | -0.05 |
| Apr | 1.95 | 2.03 | -0.08 |
| May | 2.98 | 3.08 | -0.10 |
| Jun | 3.18 | 3.26 | -0.08 |
| Jul | 3.06 | 3.02 | 0.04 |
| Aug | 2.40 | 2.52 | -0.12 |
| Sep | 1.37 | 1.33 | 0.04 |
| Oct | 1.46 | 1.53 | -0.07 |
| Nov | 0.52 | 0.56 | -0.04 |
| Dec | 0.39 | 0.43 | -0.04 |
19.08 | 19.62 | -0.54 |