| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.31 | 4.58 | -0.27 |
| Feb | 3.87 | 4.26 | -0.39 |
| Mar | 4.32 | 4.59 | -0.27 |
| Apr | 4.43 | 4.41 | 0.02 |
| May | 4.08 | 4.12 | -0.04 |
| Jun | 4.57 | 4.49 | 0.08 |
| Jul | 5.06 | 4.45 | 0.61 |
| Aug | 4.29 | 4.17 | 0.12 |
| Sep | 3.99 | 4.17 | -0.18 |
| Oct | 3.26 | 2.99 | 0.27 |
| Nov | 3.59 | 3.43 | 0.16 |
| Dec | 4.36 | 4.79 | -0.43 |
50.13 | 50.45 | -0.32 |