| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.47 | 0.04 |
| Feb | 3.07 | 3.01 | 0.06 |
| Mar | 4.03 | 3.93 | 0.10 |
| Apr | 3.31 | 3.34 | -0.03 |
| May | 3.68 | 3.61 | 0.07 |
| Jun | 4.10 | 4.05 | 0.05 |
| Jul | 4.69 | 4.78 | -0.09 |
| Aug | 4.49 | 4.52 | -0.03 |
| Sep | 4.35 | 4.41 | -0.06 |
| Oct | 3.94 | 4.19 | -0.25 |
| Nov | 3.07 | 3.02 | 0.05 |
| Dec | 3.68 | 3.88 | -0.20 |
45.92 | 46.21 | -0.29 |