| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.37 | 3.82 | -0.45 |
| Feb | 2.94 | 3.33 | -0.39 |
| Mar | 4.32 | 4.79 | -0.47 |
| Apr | 4.04 | 4.33 | -0.29 |
| May | 3.47 | 3.43 | 0.04 |
| Jun | 3.65 | 3.66 | -0.01 |
| Jul | 3.06 | 3.07 | -0.01 |
| Aug | 3.60 | 3.77 | -0.17 |
| Sep | 3.93 | 3.88 | 0.05 |
| Oct | 4.33 | 4.50 | -0.17 |
| Nov | 3.57 | 3.82 | -0.25 |
| Dec | 4.21 | 4.69 | -0.48 |
44.49 | 47.09 | -2.60 |