| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.16 | 4.43 | -0.27 |
| Feb | 3.38 | 3.73 | -0.35 |
| Mar | 4.15 | 4.48 | -0.33 |
| Apr | 4.33 | 4.51 | -0.18 |
| May | 3.66 | 4.15 | -0.49 |
| Jun | 4.09 | 4.37 | -0.28 |
| Jul | 3.12 | 3.08 | 0.04 |
| Aug | 2.99 | 3.06 | -0.07 |
| Sep | 3.82 | 3.83 | -0.01 |
| Oct | 5.43 | 5.65 | -0.22 |
| Nov | 4.89 | 5.36 | -0.47 |
| Dec | 5.10 | 5.40 | -0.30 |
49.12 | 52.05 | -2.93 |