| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.40 | 3.66 | -0.26 |
| Feb | 2.85 | 2.98 | -0.13 |
| Mar | 3.74 | 3.92 | -0.18 |
| Apr | 3.36 | 3.63 | -0.27 |
| May | 3.79 | 3.90 | -0.11 |
| Jun | 4.35 | 4.47 | -0.12 |
| Jul | 5.49 | 5.40 | 0.09 |
| Aug | 5.17 | 5.78 | -0.61 |
| Sep | 4.98 | 5.10 | -0.12 |
| Oct | 3.88 | 4.32 | -0.44 |
| Nov | 3.05 | 3.37 | -0.32 |
| Dec | 3.25 | 3.61 | -0.36 |
47.31 | 50.14 | -2.83 |