| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.78 | 0.77 | 0.01 |
| Feb | 0.82 | 0.83 | -0.01 |
| Mar | 1.40 | 1.39 | 0.01 |
| Apr | 2.49 | 2.44 | 0.05 |
| May | 3.35 | 3.44 | -0.09 |
| Jun | 4.60 | 4.61 | -0.01 |
| Jul | 4.42 | 4.57 | -0.15 |
| Aug | 3.75 | 3.84 | -0.09 |
| Sep | 3.22 | 3.21 | 0.01 |
| Oct | 2.96 | 2.99 | -0.03 |
| Nov | 1.57 | 1.53 | 0.04 |
| Dec | 1.15 | 1.17 | -0.02 |
30.51 | 30.79 | -0.28 |