| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.56 | 0.63 | -0.07 |
| Feb | 0.80 | 0.81 | -0.01 |
| Mar | 1.46 | 1.48 | -0.02 |
| Apr | 2.90 | 2.98 | -0.08 |
| May | 3.77 | 3.75 | 0.02 |
| Jun | 4.53 | 4.43 | 0.10 |
| Jul | 3.33 | 3.37 | -0.04 |
| Aug | 3.34 | 3.35 | -0.01 |
| Sep | 2.92 | 2.84 | 0.08 |
| Oct | 2.27 | 2.29 | -0.02 |
| Nov | 1.19 | 1.27 | -0.08 |
| Dec | 0.83 | 0.88 | -0.05 |
27.90 | 28.08 | -0.18 |