| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.56 | -0.13 |
| Feb | 2.35 | 2.53 | -0.18 |
| Mar | 2.12 | 2.29 | -0.17 |
| Apr | 1.68 | 1.78 | -0.10 |
| May | 1.29 | 1.38 | -0.09 |
| Jun | 0.69 | 0.77 | -0.08 |
| Jul | 0.31 | 0.37 | -0.06 |
| Aug | 0.26 | 0.31 | -0.05 |
| Sep | 0.47 | 0.49 | -0.02 |
| Oct | 1.47 | 1.60 | -0.13 |
| Nov | 3.01 | 3.28 | -0.27 |
| Dec | 4.15 | 4.55 | -0.40 |
21.23 | 22.91 | -1.68 |