| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.93 | -0.34 |
| Feb | 3.13 | 3.51 | -0.38 |
| Mar | 4.02 | 4.51 | -0.49 |
| Apr | 4.13 | 4.64 | -0.51 |
| May | 3.51 | 3.74 | -0.23 |
| Jun | 4.30 | 4.41 | -0.11 |
| Jul | 3.77 | 3.99 | -0.22 |
| Aug | 3.82 | 4.13 | -0.31 |
| Sep | 4.11 | 4.47 | -0.36 |
| Oct | 4.64 | 5.01 | -0.37 |
| Nov | 3.89 | 4.02 | -0.13 |
| Dec | 4.23 | 4.77 | -0.54 |
47.14 | 51.13 | -3.99 |