| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.72 | 2.84 | -0.12 |
| Feb | 2.22 | 2.36 | -0.14 |
| Mar | 3.33 | 3.51 | -0.18 |
| Apr | 3.41 | 3.48 | -0.07 |
| May | 4.06 | 4.10 | -0.04 |
| Jun | 3.63 | 3.79 | -0.16 |
| Jul | 3.73 | 3.59 | 0.14 |
| Aug | 3.29 | 3.35 | -0.06 |
| Sep | 4.18 | 4.23 | -0.05 |
| Oct | 3.02 | 3.31 | -0.29 |
| Nov | 2.82 | 2.90 | -0.08 |
| Dec | 3.26 | 3.35 | -0.09 |
39.67 | 40.81 | -1.14 |