| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.66 | 0.70 | -0.04 |
| Feb | 0.71 | 0.78 | -0.07 |
| Mar | 1.52 | 1.44 | 0.08 |
| Apr | 2.52 | 2.48 | 0.04 |
| May | 3.49 | 3.40 | 0.09 |
| Jun | 4.33 | 4.31 | 0.02 |
| Jul | 3.71 | 3.48 | 0.23 |
| Aug | 3.79 | 3.75 | 0.04 |
| Sep | 2.89 | 2.86 | 0.03 |
| Oct | 2.32 | 2.29 | 0.03 |
| Nov | 1.18 | 1.19 | -0.01 |
| Dec | 0.85 | 0.84 | 0.01 |
27.97 | 27.52 | 0.45 |