| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.77 | 4.82 | -0.05 |
| Feb | 4.70 | 4.77 | -0.07 |
| Mar | 5.16 | 5.22 | -0.06 |
| Apr | 4.35 | 4.49 | -0.14 |
| May | 3.88 | 3.96 | -0.08 |
| Jun | 4.09 | 4.07 | 0.02 |
| Jul | 3.94 | 4.23 | -0.29 |
| Aug | 3.85 | 3.94 | -0.09 |
| Sep | 3.70 | 3.67 | 0.03 |
| Oct | 3.52 | 3.51 | 0.01 |
| Nov | 4.22 | 4.20 | 0.02 |
| Dec | 4.98 | 5.02 | -0.04 |
51.16 | 51.90 | -0.74 |