| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.80 | -0.08 |
| Feb | 0.80 | 0.90 | -0.10 |
| Mar | 0.95 | 1.06 | -0.11 |
| Apr | 1.85 | 2.12 | -0.27 |
| May | 3.09 | 3.34 | -0.25 |
| Jun | 2.83 | 2.94 | -0.11 |
| Jul | 2.43 | 2.70 | -0.27 |
| Aug | 1.78 | 1.96 | -0.18 |
| Sep | 1.29 | 1.35 | -0.06 |
| Oct | 1.50 | 1.79 | -0.29 |
| Nov | 0.77 | 0.95 | -0.18 |
| Dec | 0.71 | 0.79 | -0.08 |
18.72 | 20.70 | -1.98 |