| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.42 | 0.42 | 0.00 |
| Feb | 0.53 | 0.55 | -0.02 |
| Mar | 1.07 | 1.11 | -0.04 |
| Apr | 2.22 | 2.24 | -0.02 |
| May | 3.41 | 3.43 | -0.02 |
| Jun | 3.35 | 3.37 | -0.02 |
| Jul | 2.24 | 2.36 | -0.12 |
| Aug | 1.81 | 1.78 | 0.03 |
| Sep | 1.34 | 1.32 | 0.02 |
| Oct | 1.63 | 1.59 | 0.04 |
| Nov | 0.56 | 0.55 | 0.01 |
| Dec | 0.45 | 0.49 | -0.04 |
19.03 | 19.21 | -0.18 |