| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.62 | -0.11 |
| Feb | 2.89 | 2.90 | -0.01 |
| Mar | 4.12 | 4.08 | 0.04 |
| Apr | 3.66 | 3.62 | 0.04 |
| May | 3.71 | 3.62 | 0.09 |
| Jun | 4.41 | 4.26 | 0.15 |
| Jul | 4.85 | 4.80 | 0.05 |
| Aug | 4.73 | 4.60 | 0.13 |
| Sep | 4.97 | 5.32 | -0.35 |
| Oct | 3.54 | 3.63 | -0.09 |
| Nov | 3.39 | 3.37 | 0.02 |
| Dec | 3.51 | 3.52 | -0.01 |
47.29 | 47.34 | -0.05 |