| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.13 | 4.17 | -0.04 |
| Feb | 3.77 | 3.68 | 0.09 |
| Mar | 3.46 | 3.38 | 0.08 |
| Apr | 1.69 | 1.68 | 0.01 |
| May | 1.26 | 1.18 | 0.08 |
| Jun | 0.59 | 0.46 | 0.13 |
| Jul | 0.22 | 0.24 | -0.02 |
| Aug | 0.19 | 0.23 | -0.04 |
| Sep | 0.41 | 0.44 | -0.03 |
| Oct | 1.22 | 1.03 | 0.19 |
| Nov | 2.10 | 2.08 | 0.02 |
| Dec | 4.21 | 4.26 | -0.05 |
23.25 | 22.83 | 0.42 |