| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.61 | -0.05 |
| Feb | 3.11 | 2.98 | 0.13 |
| Mar | 3.96 | 4.01 | -0.05 |
| Apr | 3.56 | 3.57 | -0.01 |
| May | 3.75 | 3.67 | 0.08 |
| Jun | 4.50 | 4.43 | 0.07 |
| Jul | 5.02 | 5.39 | -0.37 |
| Aug | 5.11 | 5.06 | 0.05 |
| Sep | 5.46 | 5.60 | -0.14 |
| Oct | 3.37 | 3.33 | 0.04 |
| Nov | 3.41 | 3.37 | 0.04 |
| Dec | 3.52 | 3.48 | 0.04 |
48.33 | 48.50 | -0.17 |