| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.24 | 4.30 | -0.06 |
| Feb | 4.37 | 4.35 | 0.02 |
| Mar | 4.83 | 4.74 | 0.09 |
| Apr | 3.75 | 3.82 | -0.07 |
| May | 2.72 | 2.92 | -0.20 |
| Jun | 4.05 | 4.22 | -0.17 |
| Jul | 4.43 | 4.56 | -0.13 |
| Aug | 4.35 | 4.23 | 0.12 |
| Sep | 3.85 | 3.61 | 0.24 |
| Oct | 3.01 | 3.03 | -0.02 |
| Nov | 3.42 | 3.52 | -0.10 |
| Dec | 4.54 | 4.55 | -0.01 |
47.56 | 47.85 | -0.29 |