| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.40 | 0.38 | 0.02 |
| Feb | 0.49 | 0.45 | 0.04 |
| Mar | 1.04 | 1.05 | -0.01 |
| Apr | 1.66 | 1.78 | -0.12 |
| May | 2.39 | 2.41 | -0.02 |
| Jun | 2.84 | 2.81 | 0.03 |
| Jul | 3.22 | 3.34 | -0.12 |
| Aug | 2.87 | 3.09 | -0.22 |
| Sep | 1.37 | 1.33 | 0.04 |
| Oct | 1.52 | 1.60 | -0.08 |
| Nov | 0.59 | 0.55 | 0.04 |
| Dec | 0.49 | 0.63 | -0.14 |
18.88 | 19.42 | -0.54 |