| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.25 | 4.28 | -0.03 |
| Feb | 4.13 | 4.17 | -0.04 |
| Mar | 4.56 | 4.58 | -0.02 |
| Apr | 3.33 | 3.46 | -0.13 |
| May | 3.46 | 3.36 | 0.10 |
| Jun | 4.31 | 4.31 | 0.00 |
| Jul | 3.99 | 4.04 | -0.05 |
| Aug | 4.37 | 4.26 | 0.11 |
| Sep | 3.79 | 3.70 | 0.09 |
| Oct | 3.31 | 3.33 | -0.02 |
| Nov | 3.77 | 3.87 | -0.10 |
| Dec | 4.66 | 4.65 | 0.01 |
47.93 | 48.01 | -0.08 |