| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.61 | -0.07 |
| Feb | 2.90 | 2.90 | 0.00 |
| Mar | 4.22 | 4.37 | -0.15 |
| Apr | 3.49 | 3.56 | -0.07 |
| May | 3.65 | 3.68 | -0.03 |
| Jun | 4.15 | 4.18 | -0.03 |
| Jul | 5.03 | 4.87 | 0.16 |
| Aug | 4.66 | 4.77 | -0.11 |
| Sep | 3.83 | 3.93 | -0.10 |
| Oct | 3.98 | 4.06 | -0.08 |
| Nov | 3.30 | 3.28 | 0.02 |
| Dec | 4.25 | 4.42 | -0.17 |
47.00 | 47.63 | -0.63 |