| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.57 | 7.46 | -0.89 |
| Feb | 6.56 | 6.63 | -0.07 |
| Mar | 6.01 | 5.81 | 0.20 |
| Apr | 2.56 | 3.02 | -0.46 |
| May | 1.59 | 2.05 | -0.46 |
| Jun | 0.92 | 1.04 | -0.12 |
| Jul | 0.04 | 0.09 | -0.05 |
| Aug | 0.11 | 0.14 | -0.03 |
| Sep | 0.40 | 0.41 | -0.01 |
| Oct | 1.91 | 1.92 | -0.01 |
| Nov | 3.87 | 4.30 | -0.43 |
| Dec | 6.94 | 7.62 | -0.68 |
37.48 | 40.49 | -3.01 |