| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.32 | 0.31 | 0.01 |
| Feb | 0.49 | 0.44 | 0.05 |
| Mar | 0.94 | 0.93 | 0.01 |
| Apr | 1.99 | 1.95 | 0.04 |
| May | 2.89 | 2.90 | -0.01 |
| Jun | 3.07 | 3.15 | -0.08 |
| Jul | 2.92 | 2.79 | 0.13 |
| Aug | 2.39 | 2.32 | 0.07 |
| Sep | 1.52 | 1.48 | 0.04 |
| Oct | 1.37 | 1.34 | 0.03 |
| Nov | 0.50 | 0.47 | 0.03 |
| Dec | 0.35 | 0.36 | -0.01 |
18.75 | 18.44 | 0.31 |