| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.58 | 0.65 | -0.07 |
| Feb | 0.79 | 0.81 | -0.02 |
| Mar | 1.43 | 1.48 | -0.05 |
| Apr | 2.83 | 2.94 | -0.11 |
| May | 3.70 | 3.75 | -0.05 |
| Jun | 4.60 | 4.53 | 0.07 |
| Jul | 3.43 | 3.43 | 0.00 |
| Aug | 3.29 | 3.37 | -0.08 |
| Sep | 2.94 | 2.92 | 0.02 |
| Oct | 2.26 | 2.27 | -0.01 |
| Nov | 1.18 | 1.30 | -0.12 |
| Dec | 0.82 | 0.90 | -0.08 |
27.85 | 28.35 | -0.50 |