| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.29 | 3.36 | -0.07 |
| Feb | 2.73 | 2.78 | -0.05 |
| Mar | 3.83 | 3.85 | -0.02 |
| Apr | 3.71 | 3.77 | -0.06 |
| May | 3.85 | 3.92 | -0.07 |
| Jun | 4.54 | 4.67 | -0.13 |
| Jul | 4.58 | 4.32 | 0.26 |
| Aug | 4.59 | 4.81 | -0.22 |
| Sep | 4.35 | 4.43 | -0.08 |
| Oct | 4.44 | 4.66 | -0.22 |
| Nov | 3.27 | 3.31 | -0.04 |
| Dec | 3.92 | 4.11 | -0.19 |
47.10 | 47.99 | -0.89 |