| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.33 | 0.41 | -0.08 |
| Feb | 0.52 | 0.57 | -0.05 |
| Mar | 1.04 | 1.08 | -0.04 |
| Apr | 2.20 | 2.30 | -0.10 |
| May | 4.07 | 4.09 | -0.02 |
| Jun | 3.28 | 3.25 | 0.03 |
| Jul | 2.79 | 2.82 | -0.03 |
| Aug | 1.97 | 2.15 | -0.18 |
| Sep | 1.50 | 1.49 | 0.01 |
| Oct | 1.54 | 1.66 | -0.12 |
| Nov | 0.52 | 0.58 | -0.06 |
| Dec | 0.37 | 0.45 | -0.08 |
20.13 | 20.85 | -0.72 |