| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.47 | 0.49 | -0.02 |
| Feb | 0.47 | 0.48 | -0.01 |
| Mar | 0.78 | 0.79 | -0.01 |
| Apr | 1.74 | 1.77 | -0.03 |
| May | 2.79 | 2.63 | 0.16 |
| Jun | 2.84 | 2.97 | -0.13 |
| Jul | 1.57 | 1.52 | 0.05 |
| Aug | 1.13 | 1.12 | 0.01 |
| Sep | 1.20 | 1.21 | -0.01 |
| Oct | 1.25 | 1.26 | -0.01 |
| Nov | 0.56 | 0.57 | -0.01 |
| Dec | 0.49 | 0.52 | -0.03 |
15.29 | 15.33 | -0.04 |