| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.92 | 3.94 | -0.02 |
| Feb | 3.44 | 3.40 | 0.04 |
| Mar | 4.57 | 4.65 | -0.08 |
| Apr | 4.36 | 4.48 | -0.12 |
| May | 3.59 | 3.49 | 0.10 |
| Jun | 4.20 | 4.32 | -0.12 |
| Jul | 3.58 | 3.57 | 0.01 |
| Aug | 3.89 | 3.91 | -0.02 |
| Sep | 3.96 | 4.03 | -0.07 |
| Oct | 4.96 | 4.90 | 0.06 |
| Nov | 3.99 | 4.01 | -0.02 |
| Dec | 4.77 | 4.92 | -0.15 |
49.23 | 49.62 | -0.39 |