| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.65 | -0.22 |
| Feb | 2.87 | 3.04 | -0.17 |
| Mar | 3.75 | 3.93 | -0.18 |
| Apr | 3.38 | 3.66 | -0.28 |
| May | 3.80 | 3.83 | -0.03 |
| Jun | 4.41 | 4.43 | -0.02 |
| Jul | 5.49 | 5.42 | 0.07 |
| Aug | 5.25 | 5.49 | -0.24 |
| Sep | 5.02 | 4.96 | 0.06 |
| Oct | 3.90 | 4.24 | -0.34 |
| Nov | 3.06 | 3.43 | -0.37 |
| Dec | 3.26 | 3.63 | -0.37 |
47.62 | 49.71 | -2.09 |