| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.47 | 0.49 | -0.02 |
| Feb | 0.63 | 0.66 | -0.03 |
| Mar | 0.92 | 0.93 | -0.01 |
| Apr | 1.96 | 2.06 | -0.10 |
| May | 3.25 | 3.28 | -0.03 |
| Jun | 3.52 | 3.57 | -0.05 |
| Jul | 3.07 | 3.01 | 0.06 |
| Aug | 2.40 | 2.44 | -0.04 |
| Sep | 2.03 | 2.03 | 0.00 |
| Oct | 1.81 | 1.83 | -0.02 |
| Nov | 0.62 | 0.67 | -0.05 |
| Dec | 0.55 | 0.57 | -0.02 |
21.23 | 21.54 | -0.31 |