| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.65 | 1.57 | 0.08 |
| Feb | 1.21 | 1.20 | 0.01 |
| Mar | 1.25 | 1.18 | 0.07 |
| Apr | 1.38 | 1.31 | 0.07 |
| May | 1.60 | 1.59 | 0.01 |
| Jun | 1.11 | 1.06 | 0.05 |
| Jul | 0.34 | 0.36 | -0.02 |
| Aug | 0.33 | 0.34 | -0.01 |
| Sep | 0.46 | 0.45 | 0.01 |
| Oct | 1.18 | 1.12 | 0.06 |
| Nov | 1.49 | 1.47 | 0.02 |
| Dec | 1.83 | 1.71 | 0.12 |
13.83 | 13.36 | 0.47 |