| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.39 | 1.37 | 0.02 |
| Feb | 1.74 | 1.84 | -0.10 |
| Mar | 2.63 | 2.82 | -0.19 |
| Apr | 3.96 | 4.09 | -0.13 |
| May | 5.11 | 5.15 | -0.04 |
| Jun | 5.07 | 5.22 | -0.15 |
| Jul | 4.46 | 4.40 | 0.06 |
| Aug | 4.18 | 4.28 | -0.10 |
| Sep | 4.10 | 4.19 | -0.09 |
| Oct | 3.04 | 3.06 | -0.02 |
| Nov | 2.30 | 2.31 | -0.01 |
| Dec | 1.57 | 1.63 | -0.06 |
39.55 | 40.36 | -0.81 |