| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.63 | 0.63 | 0.00 |
| Feb | 0.81 | 0.82 | -0.01 |
| Mar | 1.43 | 1.49 | -0.06 |
| Apr | 2.48 | 2.55 | -0.07 |
| May | 4.30 | 4.40 | -0.10 |
| Jun | 3.96 | 4.15 | -0.19 |
| Jul | 4.31 | 4.24 | 0.07 |
| Aug | 3.35 | 3.38 | -0.03 |
| Sep | 2.46 | 2.51 | -0.05 |
| Oct | 1.99 | 2.02 | -0.03 |
| Nov | 1.19 | 1.21 | -0.02 |
| Dec | 0.90 | 0.94 | -0.04 |
27.81 | 28.34 | -0.53 |