| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.75 | 0.72 | 0.03 |
| Feb | 1.04 | 0.97 | 0.07 |
| Mar | 1.98 | 1.91 | 0.07 |
| Apr | 2.47 | 2.46 | 0.01 |
| May | 3.82 | 3.99 | -0.17 |
| Jun | 4.05 | 4.01 | 0.04 |
| Jul | 3.40 | 3.36 | 0.04 |
| Aug | 3.52 | 3.42 | 0.10 |
| Sep | 2.10 | 2.27 | -0.17 |
| Oct | 2.43 | 2.39 | 0.04 |
| Nov | 1.24 | 1.13 | 0.11 |
| Dec | 1.11 | 1.02 | 0.09 |
27.91 | 27.65 | 0.26 |