| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.24 | 1.31 | -0.07 |
| Feb | 1.08 | 1.09 | -0.01 |
| Mar | 1.62 | 1.60 | 0.02 |
| Apr | 2.66 | 2.75 | -0.09 |
| May | 3.46 | 3.46 | 0.00 |
| Jun | 3.84 | 3.82 | 0.02 |
| Jul | 4.08 | 4.06 | 0.02 |
| Aug | 3.45 | 3.41 | 0.04 |
| Sep | 3.32 | 3.12 | 0.20 |
| Oct | 3.25 | 3.01 | 0.24 |
| Nov | 2.07 | 1.75 | 0.32 |
| Dec | 1.57 | 1.62 | -0.05 |
31.64 | 31.00 | 0.64 |