| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.42 | 0.48 | -0.06 |
| Feb | 0.59 | 0.60 | -0.01 |
| Mar | 0.98 | 1.04 | -0.06 |
| Apr | 2.44 | 2.55 | -0.11 |
| May | 3.39 | 3.47 | -0.08 |
| Jun | 3.70 | 3.86 | -0.16 |
| Jul | 2.69 | 2.72 | -0.03 |
| Aug | 2.59 | 2.60 | -0.01 |
| Sep | 2.01 | 2.10 | -0.09 |
| Oct | 1.72 | 1.81 | -0.09 |
| Nov | 0.68 | 0.75 | -0.07 |
| Dec | 0.48 | 0.56 | -0.08 |
21.69 | 22.54 | -0.85 |