| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.33 | 0.34 | -0.01 |
| Feb | 0.51 | 0.55 | -0.04 |
| Mar | 1.07 | 1.11 | -0.04 |
| Apr | 2.15 | 2.25 | -0.10 |
| May | 3.06 | 3.07 | -0.01 |
| Jun | 3.25 | 3.33 | -0.08 |
| Jul | 3.27 | 3.42 | -0.15 |
| Aug | 2.94 | 3.18 | -0.24 |
| Sep | 1.57 | 1.56 | 0.01 |
| Oct | 1.59 | 1.70 | -0.11 |
| Nov | 0.71 | 0.73 | -0.02 |
| Dec | 0.49 | 0.52 | -0.03 |
20.94 | 21.76 | -0.82 |