| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.71 | 4.65 | 0.06 |
| Feb | 4.71 | 4.77 | -0.06 |
| Mar | 4.90 | 4.86 | 0.04 |
| Apr | 3.98 | 3.98 | 0.00 |
| May | 3.79 | 3.87 | -0.08 |
| Jun | 4.51 | 4.49 | 0.02 |
| Jul | 4.87 | 4.75 | 0.12 |
| Aug | 4.36 | 4.71 | -0.35 |
| Sep | 4.13 | 4.30 | -0.17 |
| Oct | 3.49 | 3.52 | -0.03 |
| Nov | 4.05 | 4.26 | -0.21 |
| Dec | 4.60 | 4.69 | -0.09 |
52.10 | 52.85 | -0.75 |