| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.28 | 4.47 | -0.19 |
| Feb | 3.92 | 3.99 | -0.07 |
| Mar | 4.66 | 4.61 | 0.05 |
| Apr | 3.67 | 3.77 | -0.10 |
| May | 4.03 | 3.90 | 0.13 |
| Jun | 4.10 | 4.15 | -0.05 |
| Jul | 4.04 | 3.99 | 0.05 |
| Aug | 4.40 | 4.45 | -0.05 |
| Sep | 3.48 | 3.66 | -0.18 |
| Oct | 3.25 | 3.38 | -0.13 |
| Nov | 3.54 | 3.79 | -0.25 |
| Dec | 4.46 | 4.92 | -0.46 |
47.83 | 49.08 | -1.25 |