| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.70 | -0.01 |
| Feb | 0.79 | 0.81 | -0.02 |
| Mar | 1.44 | 1.45 | -0.01 |
| Apr | 2.51 | 2.62 | -0.11 |
| May | 3.63 | 3.86 | -0.23 |
| Jun | 4.34 | 4.38 | -0.04 |
| Jul | 3.65 | 3.68 | -0.03 |
| Aug | 3.84 | 4.02 | -0.18 |
| Sep | 3.01 | 3.10 | -0.09 |
| Oct | 2.29 | 2.44 | -0.15 |
| Nov | 1.33 | 1.35 | -0.02 |
| Dec | 0.89 | 0.98 | -0.09 |
28.41 | 29.39 | -0.98 |