| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.41 | -0.02 |
| Feb | 2.84 | 2.86 | -0.02 |
| Mar | 3.92 | 3.95 | -0.03 |
| Apr | 4.92 | 5.01 | -0.09 |
| May | 5.21 | 5.17 | 0.04 |
| Jun | 5.12 | 5.10 | 0.02 |
| Jul | 4.38 | 4.39 | -0.01 |
| Aug | 3.74 | 3.70 | 0.04 |
| Sep | 3.25 | 3.32 | -0.07 |
| Oct | 3.37 | 3.40 | -0.03 |
| Nov | 3.62 | 3.63 | -0.01 |
| Dec | 3.60 | 3.65 | -0.05 |
47.36 | 47.59 | -0.23 |