| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.65 | 4.06 | -0.41 |
| Feb | 3.61 | 3.68 | -0.07 |
| Mar | 3.79 | 3.75 | 0.04 |
| Apr | 3.22 | 3.31 | -0.09 |
| May | 3.54 | 3.64 | -0.10 |
| Jun | 5.25 | 4.97 | 0.28 |
| Jul | 5.27 | 5.25 | 0.02 |
| Aug | 5.05 | 4.91 | 0.14 |
| Sep | 4.33 | 4.38 | -0.05 |
| Oct | 3.20 | 3.38 | -0.18 |
| Nov | 2.90 | 2.96 | -0.06 |
| Dec | 3.71 | 3.82 | -0.11 |
47.52 | 48.11 | -0.59 |