| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.16 | 2.18 | -0.02 |
| Feb | 1.97 | 2.02 | -0.05 |
| Mar | 2.73 | 2.68 | 0.05 |
| Apr | 3.89 | 3.83 | 0.06 |
| May | 4.47 | 4.35 | 0.12 |
| Jun | 4.25 | 4.27 | -0.02 |
| Jul | 4.07 | 4.25 | -0.18 |
| Aug | 3.34 | 3.32 | 0.02 |
| Sep | 3.11 | 3.03 | 0.08 |
| Oct | 3.27 | 3.25 | 0.02 |
| Nov | 2.95 | 2.86 | 0.09 |
| Dec | 2.25 | 2.24 | 0.01 |
38.46 | 38.28 | 0.18 |