| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.31 | 3.46 | -0.15 |
| Feb | 3.37 | 3.36 | 0.01 |
| Mar | 4.38 | 4.49 | -0.11 |
| Apr | 4.59 | 4.66 | -0.07 |
| May | 5.21 | 5.22 | -0.01 |
| Jun | 4.77 | 4.81 | -0.04 |
| Jul | 4.95 | 4.77 | 0.18 |
| Aug | 3.46 | 3.39 | 0.07 |
| Sep | 3.49 | 3.47 | 0.02 |
| Oct | 3.46 | 3.40 | 0.06 |
| Nov | 3.19 | 3.29 | -0.10 |
| Dec | 3.91 | 4.02 | -0.11 |
48.09 | 48.34 | -0.25 |