| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.46 | 4.04 | 0.42 |
| Feb | 4.56 | 3.81 | 0.75 |
| Mar | 3.45 | 3.08 | 0.37 |
| Apr | 1.77 | 1.80 | -0.03 |
| May | 1.01 | 1.01 | 0.00 |
| Jun | 0.27 | 0.27 | 0.00 |
| Jul | 0.01 | 0.00 | 0.01 |
| Aug | 0.03 | 0.03 | 0.00 |
| Sep | 0.13 | 0.12 | 0.01 |
| Oct | 1.05 | 1.02 | 0.03 |
| Nov | 2.57 | 2.05 | 0.52 |
| Dec | 4.04 | 3.87 | 0.17 |
23.35 | 21.10 | 2.25 |