| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.92 | 1.03 | -0.11 |
| Feb | 0.95 | 1.04 | -0.09 |
| Mar | 1.54 | 1.61 | -0.07 |
| Apr | 2.82 | 2.96 | -0.14 |
| May | 3.91 | 3.97 | -0.06 |
| Jun | 4.18 | 4.34 | -0.16 |
| Jul | 4.32 | 4.37 | -0.05 |
| Aug | 4.06 | 4.18 | -0.12 |
| Sep | 3.87 | 3.94 | -0.07 |
| Oct | 3.33 | 3.44 | -0.11 |
| Nov | 1.79 | 1.88 | -0.09 |
| Dec | 1.38 | 1.45 | -0.07 |
33.07 | 34.21 | -1.14 |