| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.84 | -0.07 |
| Feb | 0.81 | 0.87 | -0.06 |
| Mar | 1.57 | 1.57 | 0.00 |
| Apr | 2.87 | 2.87 | 0.00 |
| May | 4.02 | 4.26 | -0.24 |
| Jun | 4.91 | 4.89 | 0.02 |
| Jul | 3.98 | 3.86 | 0.12 |
| Aug | 4.05 | 4.29 | -0.24 |
| Sep | 3.18 | 3.15 | 0.03 |
| Oct | 2.39 | 2.41 | -0.02 |
| Nov | 1.48 | 1.49 | -0.01 |
| Dec | 1.07 | 1.16 | -0.09 |
31.10 | 31.66 | -0.56 |