| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.83 | 1.90 | -0.07 |
| Feb | 1.72 | 1.85 | -0.13 |
| Mar | 2.23 | 2.28 | -0.05 |
| Apr | 3.80 | 3.82 | -0.02 |
| May | 4.17 | 4.29 | -0.12 |
| Jun | 4.46 | 4.49 | -0.03 |
| Jul | 3.54 | 3.69 | -0.15 |
| Aug | 3.68 | 3.64 | 0.04 |
| Sep | 3.50 | 3.48 | 0.02 |
| Oct | 3.14 | 3.12 | 0.02 |
| Nov | 2.42 | 2.37 | 0.05 |
| Dec | 1.97 | 2.11 | -0.14 |
36.46 | 37.04 | -0.58 |