| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.01 | 3.10 | -0.09 |
| Feb | 2.42 | 2.36 | 0.06 |
| Mar | 3.17 | 3.21 | -0.04 |
| Apr | 3.88 | 3.95 | -0.07 |
| May | 4.37 | 4.25 | 0.12 |
| Jun | 4.69 | 4.69 | 0.00 |
| Jul | 4.06 | 4.08 | -0.02 |
| Aug | 3.52 | 3.49 | 0.03 |
| Sep | 3.32 | 3.35 | -0.03 |
| Oct | 3.03 | 2.91 | 0.12 |
| Nov | 3.00 | 2.91 | 0.09 |
| Dec | 3.00 | 3.08 | -0.08 |
41.47 | 41.38 | 0.09 |