| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.08 | 1.06 | 0.02 |
| Feb | 1.08 | 1.05 | 0.03 |
| Mar | 1.82 | 1.77 | 0.05 |
| Apr | 3.39 | 3.32 | 0.07 |
| May | 4.32 | 4.35 | -0.03 |
| Jun | 4.93 | 5.04 | -0.11 |
| Jul | 4.06 | 4.02 | 0.04 |
| Aug | 4.33 | 4.32 | 0.01 |
| Sep | 3.94 | 3.86 | 0.08 |
| Oct | 2.66 | 2.72 | -0.06 |
| Nov | 1.82 | 1.77 | 0.05 |
| Dec | 1.31 | 1.35 | -0.04 |
34.74 | 34.63 | 0.11 |