| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.71 | 4.77 | -0.06 |
| Feb | 4.72 | 4.79 | -0.07 |
| Mar | 4.93 | 4.85 | 0.08 |
| Apr | 4.09 | 4.10 | -0.01 |
| May | 3.92 | 4.02 | -0.10 |
| Jun | 4.49 | 4.37 | 0.12 |
| Jul | 4.74 | 4.67 | 0.07 |
| Aug | 4.38 | 4.42 | -0.04 |
| Sep | 4.11 | 4.16 | -0.05 |
| Oct | 3.51 | 3.55 | -0.04 |
| Nov | 4.21 | 4.24 | -0.03 |
| Dec | 4.63 | 4.71 | -0.08 |
52.44 | 52.65 | -0.21 |