| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.67 | 5.11 | -0.44 |
| Feb | 4.94 | 5.07 | -0.13 |
| Mar | 5.26 | 5.36 | -0.10 |
| Apr | 4.62 | 5.11 | -0.49 |
| May | 4.04 | 4.52 | -0.48 |
| Jun | 4.65 | 5.10 | -0.45 |
| Jul | 4.72 | 5.49 | -0.77 |
| Aug | 3.83 | 3.91 | -0.08 |
| Sep | 4.10 | 4.26 | -0.16 |
| Oct | 3.05 | 3.14 | -0.09 |
| Nov | 4.56 | 4.48 | 0.08 |
| Dec | 5.43 | 5.65 | -0.22 |
53.87 | 57.20 | -3.33 |