| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.60 | -0.11 |
| Feb | 3.62 | 3.70 | -0.08 |
| Mar | 4.28 | 4.26 | 0.02 |
| Apr | 4.33 | 4.37 | -0.04 |
| May | 4.66 | 4.79 | -0.13 |
| Jun | 4.55 | 4.62 | -0.07 |
| Jul | 5.03 | 5.31 | -0.28 |
| Aug | 3.98 | 4.09 | -0.11 |
| Sep | 3.15 | 3.27 | -0.12 |
| Oct | 2.84 | 2.90 | -0.06 |
| Nov | 2.94 | 2.96 | -0.02 |
| Dec | 4.11 | 4.36 | -0.25 |
46.98 | 48.23 | -1.25 |