| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.89 | 4.11 | -0.22 |
| Feb | 3.33 | 3.42 | -0.09 |
| Mar | 4.39 | 4.47 | -0.08 |
| Apr | 4.13 | 4.30 | -0.17 |
| May | 3.68 | 4.27 | -0.59 |
| Jun | 4.24 | 4.34 | -0.10 |
| Jul | 4.07 | 4.12 | -0.05 |
| Aug | 4.36 | 4.55 | -0.19 |
| Sep | 3.84 | 3.84 | 0.00 |
| Oct | 3.46 | 3.65 | -0.19 |
| Nov | 3.66 | 3.83 | -0.17 |
| Dec | 4.20 | 4.26 | -0.06 |
47.25 | 49.16 | -1.91 |