| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.27 | 3.39 | -0.12 |
| Feb | 3.05 | 3.10 | -0.05 |
| Mar | 3.34 | 3.39 | -0.05 |
| Apr | 3.24 | 3.11 | 0.13 |
| May | 3.11 | 2.81 | 0.30 |
| Jun | 5.38 | 5.05 | 0.33 |
| Jul | 5.73 | 5.49 | 0.24 |
| Aug | 6.33 | 6.34 | -0.01 |
| Sep | 5.31 | 5.37 | -0.06 |
| Oct | 4.38 | 4.45 | -0.07 |
| Nov | 2.80 | 2.82 | -0.02 |
| Dec | 3.16 | 3.49 | -0.33 |
49.10 | 48.81 | 0.29 |