| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.41 | 0.37 | 0.04 |
| Feb | 0.52 | 0.51 | 0.01 |
| Mar | 0.97 | 0.94 | 0.03 |
| Apr | 1.92 | 1.91 | 0.01 |
| May | 2.84 | 2.91 | -0.07 |
| Jun | 3.02 | 2.82 | 0.20 |
| Jul | 3.52 | 3.53 | -0.01 |
| Aug | 2.96 | 3.03 | -0.07 |
| Sep | 1.52 | 1.49 | 0.03 |
| Oct | 1.47 | 1.48 | -0.01 |
| Nov | 0.67 | 0.65 | 0.02 |
| Dec | 0.51 | 0.53 | -0.02 |
20.33 | 20.17 | 0.16 |