| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.32 | 2.38 | -0.06 |
| Feb | 1.93 | 2.04 | -0.11 |
| Mar | 2.69 | 2.67 | 0.02 |
| Apr | 3.97 | 3.92 | 0.05 |
| May | 4.32 | 4.35 | -0.03 |
| Jun | 4.92 | 4.84 | 0.08 |
| Jul | 4.49 | 4.35 | 0.14 |
| Aug | 3.57 | 3.51 | 0.06 |
| Sep | 3.04 | 2.98 | 0.06 |
| Oct | 3.09 | 3.04 | 0.05 |
| Nov | 2.94 | 2.99 | -0.05 |
| Dec | 2.42 | 2.39 | 0.03 |
39.70 | 39.46 | 0.24 |