| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.35 | 3.33 | 0.02 |
| Feb | 2.83 | 2.85 | -0.02 |
| Mar | 4.01 | 4.12 | -0.11 |
| Apr | 3.37 | 3.43 | -0.06 |
| May | 3.68 | 3.87 | -0.19 |
| Jun | 4.12 | 4.24 | -0.12 |
| Jul | 4.20 | 4.41 | -0.21 |
| Aug | 4.82 | 4.75 | 0.07 |
| Sep | 3.93 | 4.15 | -0.22 |
| Oct | 3.73 | 4.04 | -0.31 |
| Nov | 3.11 | 3.21 | -0.10 |
| Dec | 3.72 | 3.84 | -0.12 |
44.87 | 46.24 | -1.37 |