| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.74 | -0.02 |
| Feb | 1.05 | 1.07 | -0.02 |
| Mar | 1.89 | 1.96 | -0.07 |
| Apr | 2.90 | 2.79 | 0.11 |
| May | 4.91 | 4.94 | -0.03 |
| Jun | 4.22 | 3.92 | 0.30 |
| Jul | 4.37 | 4.34 | 0.03 |
| Aug | 3.88 | 3.98 | -0.10 |
| Sep | 2.80 | 2.85 | -0.05 |
| Oct | 2.18 | 2.25 | -0.07 |
| Nov | 1.37 | 1.38 | -0.01 |
| Dec | 1.17 | 1.22 | -0.05 |
31.46 | 31.44 | 0.02 |