| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.39 | 0.43 | -0.04 |
| Feb | 0.61 | 0.68 | -0.07 |
| Mar | 0.93 | 1.02 | -0.09 |
| Apr | 1.97 | 1.94 | 0.03 |
| May | 3.20 | 3.07 | 0.13 |
| Jun | 3.28 | 3.15 | 0.13 |
| Jul | 2.34 | 2.58 | -0.24 |
| Aug | 1.83 | 1.79 | 0.04 |
| Sep | 1.27 | 1.37 | -0.10 |
| Oct | 1.65 | 1.75 | -0.10 |
| Nov | 0.50 | 0.55 | -0.05 |
| Dec | 0.50 | 0.49 | 0.01 |
18.47 | 18.82 | -0.35 |