| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.10 | 0.98 | 0.12 |
| Feb | 1.09 | 0.97 | 0.12 |
| Mar | 1.07 | 0.75 | 0.32 |
| Apr | 1.66 | 1.12 | 0.54 |
| May | 1.89 | 1.50 | 0.39 |
| Jun | 1.33 | 1.15 | 0.18 |
| Jul | 1.33 | 1.34 | -0.01 |
| Aug | 1.34 | 1.25 | 0.09 |
| Sep | 1.57 | 1.33 | 0.24 |
| Oct | 1.37 | 1.00 | 0.37 |
| Nov | 1.14 | 0.85 | 0.29 |
| Dec | 1.12 | 0.94 | 0.18 |
16.01 | 13.18 | 2.83 |