| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.37 | 0.41 | -0.04 |
| Feb | 0.50 | 0.55 | -0.05 |
| Mar | 0.94 | 0.97 | -0.03 |
| Apr | 1.93 | 1.96 | -0.03 |
| May | 3.39 | 3.45 | -0.06 |
| Jun | 3.03 | 3.01 | 0.02 |
| Jul | 2.28 | 2.08 | 0.20 |
| Aug | 1.44 | 1.53 | -0.09 |
| Sep | 1.17 | 1.22 | -0.05 |
| Oct | 1.48 | 1.54 | -0.06 |
| Nov | 0.50 | 0.57 | -0.07 |
| Dec | 0.43 | 0.48 | -0.05 |
17.46 | 17.77 | -0.31 |