| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.98 | 4.03 | -0.05 |
| Feb | 3.59 | 3.78 | -0.19 |
| Mar | 4.31 | 4.36 | -0.05 |
| Apr | 4.15 | 4.47 | -0.32 |
| May | 4.12 | 4.36 | -0.24 |
| Jun | 4.82 | 5.34 | -0.52 |
| Jul | 5.03 | 5.34 | -0.31 |
| Aug | 4.55 | 4.90 | -0.35 |
| Sep | 3.89 | 4.13 | -0.24 |
| Oct | 3.27 | 2.95 | 0.32 |
| Nov | 3.48 | 3.33 | 0.15 |
| Dec | 4.24 | 4.33 | -0.09 |
49.43 | 51.32 | -1.89 |