| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.30 | 4.46 | -0.16 |
| Feb | 3.78 | 3.50 | 0.28 |
| Mar | 4.31 | 4.83 | -0.52 |
| Apr | 4.71 | 5.17 | -0.46 |
| May | 5.20 | 5.30 | -0.10 |
| Jun | 5.11 | 5.38 | -0.27 |
| Jul | 5.39 | 5.24 | 0.15 |
| Aug | 4.61 | 5.00 | -0.39 |
| Sep | 4.18 | 5.00 | -0.82 |
| Oct | 3.65 | 4.02 | -0.37 |
| Nov | 3.41 | 4.07 | -0.66 |
| Dec | 4.20 | 4.28 | -0.08 |
52.85 | 56.25 | -3.40 |