| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.87 | 4.11 | -0.24 |
| Feb | 3.37 | 3.61 | -0.24 |
| Mar | 4.89 | 5.30 | -0.41 |
| Apr | 4.39 | 4.70 | -0.31 |
| May | 3.55 | 3.60 | -0.05 |
| Jun | 3.82 | 3.98 | -0.16 |
| Jul | 3.22 | 3.27 | -0.05 |
| Aug | 3.77 | 4.00 | -0.23 |
| Sep | 3.98 | 4.07 | -0.09 |
| Oct | 4.78 | 4.81 | -0.03 |
| Nov | 4.06 | 4.27 | -0.21 |
| Dec | 4.79 | 5.11 | -0.32 |
48.49 | 50.83 | -2.34 |