| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.40 | 3.38 | 0.02 |
| Feb | 3.31 | 3.30 | 0.01 |
| Mar | 4.33 | 4.34 | -0.01 |
| Apr | 3.77 | 3.82 | -0.05 |
| May | 4.78 | 4.94 | -0.16 |
| Jun | 4.41 | 4.52 | -0.11 |
| Jul | 5.13 | 5.38 | -0.25 |
| Aug | 3.72 | 3.70 | 0.02 |
| Sep | 3.31 | 3.39 | -0.08 |
| Oct | 3.18 | 3.16 | 0.02 |
| Nov | 3.03 | 3.10 | -0.07 |
| Dec | 3.89 | 3.96 | -0.07 |
46.26 | 46.99 | -0.73 |