| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.55 | 0.61 | -0.06 |
| Feb | 0.78 | 0.79 | -0.01 |
| Mar | 1.46 | 1.45 | 0.01 |
| Apr | 2.87 | 2.96 | -0.09 |
| May | 3.67 | 3.70 | -0.03 |
| Jun | 4.49 | 4.38 | 0.11 |
| Jul | 3.36 | 3.29 | 0.07 |
| Aug | 3.37 | 3.33 | 0.04 |
| Sep | 2.90 | 2.85 | 0.05 |
| Oct | 2.27 | 2.25 | 0.02 |
| Nov | 1.17 | 1.22 | -0.05 |
| Dec | 0.81 | 0.86 | -0.05 |
27.70 | 27.69 | 0.01 |