| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.10 | 4.43 | -0.33 |
| Feb | 4.16 | 4.46 | -0.30 |
| Mar | 3.15 | 3.47 | -0.32 |
| Apr | 1.46 | 1.71 | -0.25 |
| May | 0.66 | 0.81 | -0.15 |
| Jun | 0.15 | 0.20 | -0.05 |
| Jul | 0.01 | 0.02 | -0.01 |
| Aug | 0.03 | 0.05 | -0.02 |
| Sep | 0.09 | 0.11 | -0.02 |
| Oct | 0.97 | 1.09 | -0.12 |
| Nov | 2.22 | 2.46 | -0.24 |
| Dec | 4.37 | 4.82 | -0.45 |
21.37 | 23.63 | -2.26 |