| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.51 | -0.02 |
| Feb | 2.78 | 3.00 | -0.22 |
| Mar | 3.92 | 4.00 | -0.08 |
| Apr | 3.81 | 3.90 | -0.09 |
| May | 4.01 | 4.25 | -0.24 |
| Jun | 4.35 | 4.41 | -0.06 |
| Jul | 5.13 | 4.87 | 0.26 |
| Aug | 4.46 | 4.52 | -0.06 |
| Sep | 4.58 | 4.63 | -0.05 |
| Oct | 4.24 | 4.34 | -0.10 |
| Nov | 3.38 | 3.34 | 0.04 |
| Dec | 4.22 | 4.47 | -0.25 |
48.37 | 49.24 | -0.87 |