| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.57 | -0.09 |
| Feb | 2.91 | 2.93 | -0.02 |
| Mar | 4.06 | 4.15 | -0.09 |
| Apr | 5.02 | 5.25 | -0.23 |
| May | 5.19 | 5.35 | -0.16 |
| Jun | 4.94 | 5.26 | -0.32 |
| Jul | 4.35 | 4.51 | -0.16 |
| Aug | 3.85 | 4.08 | -0.23 |
| Sep | 3.27 | 3.36 | -0.09 |
| Oct | 3.42 | 3.57 | -0.15 |
| Nov | 3.66 | 3.72 | -0.06 |
| Dec | 3.70 | 3.79 | -0.09 |
47.85 | 49.54 | -1.69 |