| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.22 | 3.42 | -0.20 |
| Feb | 2.90 | 3.13 | -0.23 |
| Mar | 2.53 | 2.73 | -0.20 |
| Apr | 1.20 | 1.32 | -0.12 |
| May | 1.08 | 1.13 | -0.05 |
| Jun | 0.49 | 0.53 | -0.04 |
| Jul | 0.23 | 0.18 | 0.05 |
| Aug | 0.29 | 0.27 | 0.02 |
| Sep | 0.38 | 0.35 | 0.03 |
| Oct | 1.08 | 1.15 | -0.07 |
| Nov | 1.70 | 1.68 | 0.02 |
| Dec | 2.91 | 3.59 | -0.68 |
18.01 | 19.48 | -1.47 |