| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.64 | 3.70 | -0.06 |
| Feb | 2.94 | 2.95 | -0.01 |
| Mar | 4.26 | 4.22 | 0.04 |
| Apr | 3.78 | 3.81 | -0.03 |
| May | 3.73 | 3.78 | -0.05 |
| Jun | 4.43 | 4.32 | 0.11 |
| Jul | 4.49 | 4.46 | 0.03 |
| Aug | 4.31 | 4.21 | 0.10 |
| Sep | 4.89 | 5.01 | -0.12 |
| Oct | 3.58 | 3.40 | 0.18 |
| Nov | 3.38 | 3.37 | 0.01 |
| Dec | 3.59 | 3.58 | 0.01 |
47.02 | 46.81 | 0.21 |