| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.91 | 3.11 | -0.20 |
| Feb | 2.37 | 2.40 | -0.03 |
| Mar | 3.46 | 3.49 | -0.03 |
| Apr | 3.88 | 3.91 | -0.03 |
| May | 4.22 | 4.15 | 0.07 |
| Jun | 4.41 | 4.47 | -0.06 |
| Jul | 4.34 | 4.32 | 0.02 |
| Aug | 3.61 | 3.59 | 0.02 |
| Sep | 3.26 | 3.25 | 0.01 |
| Oct | 2.91 | 2.89 | 0.02 |
| Nov | 2.87 | 2.91 | -0.04 |
| Dec | 3.06 | 3.12 | -0.06 |
41.30 | 41.61 | -0.31 |