| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.46 | 3.56 | -0.10 |
| Feb | 2.82 | 2.88 | -0.06 |
| Mar | 4.16 | 4.12 | 0.04 |
| Apr | 3.64 | 3.69 | -0.05 |
| May | 3.57 | 3.77 | -0.20 |
| Jun | 4.36 | 4.29 | 0.07 |
| Jul | 4.44 | 4.64 | -0.20 |
| Aug | 4.37 | 4.36 | 0.01 |
| Sep | 4.51 | 5.03 | -0.52 |
| Oct | 3.38 | 3.45 | -0.07 |
| Nov | 3.25 | 3.32 | -0.07 |
| Dec | 3.53 | 3.49 | 0.04 |
45.49 | 46.60 | -1.11 |