| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.54 | 1.58 | -0.04 |
| Feb | 1.46 | 1.49 | -0.03 |
| Mar | 1.29 | 1.42 | -0.13 |
| Apr | 1.24 | 1.26 | -0.02 |
| May | 1.38 | 1.36 | 0.02 |
| Jun | 0.69 | 0.72 | -0.03 |
| Jul | 1.97 | 1.95 | 0.02 |
| Aug | 2.38 | 2.42 | -0.04 |
| Sep | 1.94 | 1.84 | 0.10 |
| Oct | 1.45 | 1.49 | -0.04 |
| Nov | 1.34 | 1.33 | 0.01 |
| Dec | 1.47 | 1.54 | -0.07 |
18.15 | 18.40 | -0.25 |