| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.33 | 4.40 | -0.07 |
| Feb | 4.22 | 4.33 | -0.11 |
| Mar | 4.62 | 4.39 | 0.23 |
| Apr | 3.60 | 3.79 | -0.19 |
| May | 2.84 | 2.88 | -0.04 |
| Jun | 4.31 | 4.33 | -0.02 |
| Jul | 5.20 | 4.86 | 0.34 |
| Aug | 4.30 | 4.53 | -0.23 |
| Sep | 3.61 | 3.90 | -0.29 |
| Oct | 2.79 | 2.81 | -0.02 |
| Nov | 3.29 | 3.39 | -0.10 |
| Dec | 4.78 | 4.61 | 0.17 |
47.89 | 48.22 | -0.33 |