| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.77 | 4.22 | -0.45 |
| Feb | 3.05 | 3.33 | -0.28 |
| Mar | 3.96 | 4.33 | -0.37 |
| Apr | 4.21 | 4.77 | -0.56 |
| May | 4.27 | 4.74 | -0.47 |
| Jun | 4.50 | 4.70 | -0.20 |
| Jul | 4.26 | 4.68 | -0.42 |
| Aug | 4.49 | 5.12 | -0.63 |
| Sep | 3.96 | 4.41 | -0.45 |
| Oct | 3.46 | 3.82 | -0.36 |
| Nov | 3.28 | 3.52 | -0.24 |
| Dec | 3.87 | 4.34 | -0.47 |
47.08 | 51.98 | -4.90 |