| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.11 | 4.28 | -0.17 |
| Feb | 3.61 | 3.84 | -0.23 |
| Mar | 4.49 | 4.54 | -0.05 |
| Apr | 4.28 | 4.34 | -0.06 |
| May | 3.77 | 3.91 | -0.14 |
| Jun | 4.27 | 4.54 | -0.27 |
| Jul | 4.26 | 4.41 | -0.15 |
| Aug | 4.41 | 4.53 | -0.12 |
| Sep | 3.82 | 4.27 | -0.45 |
| Oct | 3.52 | 3.74 | -0.22 |
| Nov | 3.71 | 3.94 | -0.23 |
| Dec | 4.26 | 4.60 | -0.34 |
48.51 | 50.94 | -2.43 |