| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.38 | 0.41 | -0.03 |
| Feb | 0.55 | 0.59 | -0.04 |
| Mar | 0.94 | 1.10 | -0.16 |
| Apr | 1.99 | 2.18 | -0.19 |
| May | 3.09 | 3.42 | -0.33 |
| Jun | 2.95 | 3.00 | -0.05 |
| Jul | 2.61 | 2.59 | 0.02 |
| Aug | 1.87 | 1.99 | -0.12 |
| Sep | 1.35 | 1.42 | -0.07 |
| Oct | 1.34 | 1.41 | -0.07 |
| Nov | 0.46 | 0.46 | 0.00 |
| Dec | 0.41 | 0.46 | -0.05 |
17.94 | 19.03 | -1.09 |