| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.39 | 0.38 | 0.01 |
| Feb | 0.52 | 0.51 | 0.01 |
| Mar | 0.96 | 0.93 | 0.03 |
| Apr | 1.83 | 1.86 | -0.03 |
| May | 2.89 | 2.96 | -0.07 |
| Jun | 2.90 | 2.61 | 0.29 |
| Jul | 3.55 | 3.79 | -0.24 |
| Aug | 2.90 | 3.16 | -0.26 |
| Sep | 1.51 | 1.46 | 0.05 |
| Oct | 1.49 | 1.49 | 0.00 |
| Nov | 0.65 | 0.66 | -0.01 |
| Dec | 0.49 | 0.55 | -0.06 |
20.08 | 20.36 | -0.28 |