| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.39 | 4.30 | 0.09 |
| Feb | 4.16 | 4.20 | -0.04 |
| Mar | 4.61 | 4.56 | 0.05 |
| Apr | 3.48 | 3.54 | -0.06 |
| May | 3.61 | 3.48 | 0.13 |
| Jun | 4.30 | 4.22 | 0.08 |
| Jul | 4.02 | 4.05 | -0.03 |
| Aug | 4.28 | 4.35 | -0.07 |
| Sep | 3.63 | 3.77 | -0.14 |
| Oct | 3.38 | 3.48 | -0.10 |
| Nov | 3.77 | 3.92 | -0.15 |
| Dec | 4.61 | 4.70 | -0.09 |
48.24 | 48.57 | -0.33 |