| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.82 | 3.85 | -0.03 |
| Feb | 3.87 | 3.84 | 0.03 |
| Mar | 4.18 | 4.22 | -0.04 |
| Apr | 3.89 | 4.00 | -0.11 |
| May | 4.28 | 4.58 | -0.30 |
| Jun | 3.96 | 4.13 | -0.17 |
| Jul | 2.65 | 2.67 | -0.02 |
| Aug | 2.67 | 2.84 | -0.17 |
| Sep | 3.31 | 3.22 | 0.09 |
| Oct | 4.35 | 4.55 | -0.20 |
| Nov | 3.56 | 3.81 | -0.25 |
| Dec | 4.31 | 4.41 | -0.10 |
44.85 | 46.12 | -1.27 |