| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.38 | 3.49 | -0.11 |
| Feb | 3.02 | 3.09 | -0.07 |
| Mar | 3.40 | 3.48 | -0.08 |
| Apr | 3.45 | 3.44 | 0.01 |
| May | 3.56 | 3.48 | 0.08 |
| Jun | 4.99 | 4.84 | 0.15 |
| Jul | 5.33 | 4.92 | 0.41 |
| Aug | 5.10 | 5.29 | -0.19 |
| Sep | 5.46 | 5.48 | -0.02 |
| Oct | 3.23 | 3.34 | -0.11 |
| Nov | 3.22 | 3.44 | -0.22 |
| Dec | 3.39 | 3.43 | -0.04 |
47.53 | 47.72 | -0.19 |