| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.59 | 4.51 | 0.08 |
| Feb | 4.48 | 4.50 | -0.02 |
| Mar | 4.66 | 4.65 | 0.01 |
| Apr | 3.69 | 3.70 | -0.01 |
| May | 3.59 | 3.49 | 0.10 |
| Jun | 4.69 | 4.90 | -0.21 |
| Jul | 4.06 | 4.33 | -0.27 |
| Aug | 4.84 | 4.56 | 0.28 |
| Sep | 3.96 | 3.99 | -0.03 |
| Oct | 3.30 | 3.35 | -0.05 |
| Nov | 3.81 | 3.85 | -0.04 |
| Dec | 4.59 | 4.69 | -0.10 |
50.26 | 50.52 | -0.26 |