| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.37 | 4.31 | 0.06 |
| Feb | 4.41 | 4.37 | 0.04 |
| Mar | 4.74 | 4.70 | 0.04 |
| Apr | 3.62 | 3.65 | -0.03 |
| May | 3.08 | 3.02 | 0.06 |
| Jun | 4.04 | 4.43 | -0.39 |
| Jul | 4.32 | 4.29 | 0.03 |
| Aug | 4.43 | 4.38 | 0.05 |
| Sep | 3.87 | 3.85 | 0.02 |
| Oct | 3.09 | 3.05 | 0.04 |
| Nov | 3.44 | 3.53 | -0.09 |
| Dec | 4.49 | 4.51 | -0.02 |
47.90 | 48.09 | -0.19 |