| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.75 | -0.03 |
| Feb | 0.80 | 0.83 | -0.03 |
| Mar | 1.45 | 1.52 | -0.07 |
| Apr | 2.60 | 2.71 | -0.11 |
| May | 3.40 | 3.43 | -0.03 |
| Jun | 4.52 | 4.71 | -0.19 |
| Jul | 3.98 | 4.05 | -0.07 |
| Aug | 3.80 | 4.05 | -0.25 |
| Sep | 2.97 | 3.05 | -0.08 |
| Oct | 2.41 | 2.55 | -0.14 |
| Nov | 1.34 | 1.39 | -0.05 |
| Dec | 0.89 | 0.94 | -0.05 |
28.88 | 29.98 | -1.10 |