| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.41 | 0.41 | 0.00 |
| Feb | 0.54 | 0.52 | 0.02 |
| Mar | 1.02 | 0.98 | 0.04 |
| Apr | 2.12 | 2.04 | 0.08 |
| May | 2.96 | 3.04 | -0.08 |
| Jun | 3.03 | 3.17 | -0.14 |
| Jul | 2.37 | 2.57 | -0.20 |
| Aug | 1.90 | 1.94 | -0.04 |
| Sep | 1.52 | 1.50 | 0.02 |
| Oct | 1.36 | 1.37 | -0.01 |
| Nov | 0.57 | 0.57 | 0.00 |
| Dec | 0.49 | 0.49 | 0.00 |
18.29 | 18.60 | -0.31 |