| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.40 | 3.52 | -0.12 |
| Feb | 2.79 | 2.87 | -0.08 |
| Mar | 4.15 | 4.26 | -0.11 |
| Apr | 3.64 | 3.68 | -0.04 |
| May | 3.81 | 3.83 | -0.02 |
| Jun | 4.33 | 4.35 | -0.02 |
| Jul | 4.66 | 4.66 | 0.00 |
| Aug | 4.41 | 4.59 | -0.18 |
| Sep | 4.67 | 4.83 | -0.16 |
| Oct | 4.06 | 4.26 | -0.20 |
| Nov | 3.25 | 3.27 | -0.02 |
| Dec | 4.18 | 4.37 | -0.19 |
47.35 | 48.49 | -1.14 |