| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.39 | 4.53 | -0.14 |
| Feb | 4.08 | 4.27 | -0.19 |
| Mar | 4.61 | 4.71 | -0.10 |
| Apr | 3.65 | 3.98 | -0.33 |
| May | 3.87 | 3.77 | 0.10 |
| Jun | 4.11 | 4.00 | 0.11 |
| Jul | 4.00 | 3.93 | 0.07 |
| Aug | 4.23 | 4.54 | -0.31 |
| Sep | 3.54 | 3.61 | -0.07 |
| Oct | 3.32 | 3.37 | -0.05 |
| Nov | 3.65 | 4.05 | -0.40 |
| Dec | 4.59 | 4.96 | -0.37 |
48.04 | 49.72 | -1.68 |