| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.57 | 4.55 | 0.02 |
| Feb | 4.70 | 4.60 | 0.10 |
| Mar | 4.91 | 4.84 | 0.07 |
| Apr | 3.84 | 3.90 | -0.06 |
| May | 3.13 | 3.21 | -0.08 |
| Jun | 4.48 | 4.42 | 0.06 |
| Jul | 4.52 | 4.57 | -0.05 |
| Aug | 4.41 | 4.37 | 0.04 |
| Sep | 3.86 | 3.88 | -0.02 |
| Oct | 3.35 | 3.36 | -0.01 |
| Nov | 3.78 | 3.77 | 0.01 |
| Dec | 4.66 | 4.66 | 0.00 |
50.21 | 50.13 | 0.08 |