| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.71 | 4.07 | -0.36 |
| Feb | 3.39 | 3.61 | -0.22 |
| Mar | 4.88 | 5.21 | -0.33 |
| Apr | 4.24 | 4.52 | -0.28 |
| May | 3.36 | 3.32 | 0.04 |
| Jun | 3.55 | 3.61 | -0.06 |
| Jul | 3.10 | 3.05 | 0.05 |
| Aug | 3.57 | 3.72 | -0.15 |
| Sep | 3.94 | 3.70 | 0.24 |
| Oct | 4.33 | 4.48 | -0.15 |
| Nov | 4.02 | 4.01 | 0.01 |
| Dec | 4.54 | 4.97 | -0.43 |
46.63 | 48.27 | -1.64 |