| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.11 | 4.22 | -0.11 |
| Feb | 3.92 | 4.03 | -0.11 |
| Mar | 4.49 | 4.53 | -0.04 |
| Apr | 3.10 | 3.19 | -0.09 |
| May | 3.12 | 3.04 | 0.08 |
| Jun | 4.02 | 4.17 | -0.15 |
| Jul | 4.12 | 4.27 | -0.15 |
| Aug | 4.37 | 4.72 | -0.35 |
| Sep | 3.71 | 3.95 | -0.24 |
| Oct | 2.85 | 2.92 | -0.07 |
| Nov | 3.17 | 3.19 | -0.02 |
| Dec | 4.17 | 4.23 | -0.06 |
45.15 | 46.46 | -1.31 |