| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.18 | 4.45 | -0.27 |
| Feb | 3.33 | 3.81 | -0.48 |
| Mar | 3.57 | 3.88 | -0.31 |
| Apr | 4.10 | 4.49 | -0.39 |
| May | 4.43 | 4.63 | -0.20 |
| Jun | 4.75 | 4.91 | -0.16 |
| Jul | 4.54 | 4.46 | 0.08 |
| Aug | 4.18 | 4.29 | -0.11 |
| Sep | 4.32 | 4.64 | -0.32 |
| Oct | 5.29 | 5.62 | -0.33 |
| Nov | 4.40 | 4.94 | -0.54 |
| Dec | 4.59 | 5.05 | -0.46 |
51.68 | 55.17 | -3.49 |