| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.47 | 2.72 | -0.25 |
| Feb | 2.07 | 2.30 | -0.23 |
| Mar | 2.32 | 2.44 | -0.12 |
| Apr | 3.58 | 3.61 | -0.03 |
| May | 4.21 | 4.15 | 0.06 |
| Jun | 4.27 | 4.21 | 0.06 |
| Jul | 4.08 | 4.17 | -0.09 |
| Aug | 4.10 | 4.14 | -0.04 |
| Sep | 3.33 | 3.37 | -0.04 |
| Oct | 3.73 | 3.97 | -0.24 |
| Nov | 2.81 | 3.05 | -0.24 |
| Dec | 2.42 | 2.57 | -0.15 |
39.39 | 40.70 | -1.31 |