| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.68 | 0.62 | 0.06 |
| Feb | 0.68 | 0.64 | 0.04 |
| Mar | 1.30 | 1.29 | 0.01 |
| Apr | 2.37 | 2.34 | 0.03 |
| May | 3.22 | 3.17 | 0.05 |
| Jun | 4.34 | 4.35 | -0.01 |
| Jul | 3.94 | 4.04 | -0.10 |
| Aug | 3.64 | 3.90 | -0.26 |
| Sep | 2.79 | 2.81 | -0.02 |
| Oct | 2.42 | 2.35 | 0.07 |
| Nov | 1.17 | 1.11 | 0.06 |
| Dec | 0.78 | 0.79 | -0.01 |
27.33 | 27.41 | -0.08 |