| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.32 | 3.49 | -0.17 |
| Feb | 3.20 | 3.22 | -0.02 |
| Mar | 4.49 | 4.47 | 0.02 |
| Apr | 5.04 | 5.21 | -0.17 |
| May | 4.99 | 5.09 | -0.10 |
| Jun | 4.31 | 4.35 | -0.04 |
| Jul | 4.36 | 4.31 | 0.05 |
| Aug | 3.09 | 3.07 | 0.02 |
| Sep | 3.37 | 3.51 | -0.14 |
| Oct | 3.38 | 3.44 | -0.06 |
| Nov | 3.95 | 3.90 | 0.05 |
| Dec | 3.90 | 3.91 | -0.01 |
47.40 | 47.97 | -0.57 |