| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.58 | 0.58 | 0.00 |
| Feb | 0.83 | 0.89 | -0.06 |
| Mar | 1.52 | 1.52 | 0.00 |
| Apr | 2.96 | 3.03 | -0.07 |
| May | 4.13 | 4.23 | -0.10 |
| Jun | 4.06 | 4.10 | -0.04 |
| Jul | 3.27 | 3.25 | 0.02 |
| Aug | 3.34 | 3.25 | 0.09 |
| Sep | 2.87 | 2.79 | 0.08 |
| Oct | 2.53 | 2.53 | 0.00 |
| Nov | 1.14 | 1.09 | 0.05 |
| Dec | 0.83 | 0.82 | 0.01 |
28.06 | 28.08 | -0.02 |