| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.31 | 0.32 | -0.01 |
| Feb | 0.52 | 0.50 | 0.02 |
| Mar | 0.97 | 0.96 | 0.01 |
| Apr | 2.09 | 2.12 | -0.03 |
| May | 3.86 | 3.95 | -0.09 |
| Jun | 3.21 | 3.24 | -0.03 |
| Jul | 2.54 | 2.49 | 0.05 |
| Aug | 1.73 | 2.15 | -0.42 |
| Sep | 1.36 | 1.44 | -0.08 |
| Oct | 1.43 | 1.50 | -0.07 |
| Nov | 0.49 | 0.49 | 0.00 |
| Dec | 0.38 | 0.39 | -0.01 |
18.89 | 19.55 | -0.66 |