| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.62 | 0.66 | -0.04 |
| Feb | 0.69 | 0.74 | -0.05 |
| Mar | 1.48 | 1.54 | -0.06 |
| Apr | 2.84 | 2.82 | 0.02 |
| May | 4.39 | 4.49 | -0.10 |
| Jun | 4.17 | 4.35 | -0.18 |
| Jul | 3.07 | 3.11 | -0.04 |
| Aug | 3.18 | 3.20 | -0.02 |
| Sep | 2.42 | 2.45 | -0.03 |
| Oct | 2.20 | 2.16 | 0.04 |
| Nov | 1.16 | 1.26 | -0.10 |
| Dec | 0.86 | 0.91 | -0.05 |
27.08 | 27.69 | -0.61 |