| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.42 | 3.64 | -0.22 |
| Feb | 2.89 | 3.16 | -0.27 |
| Mar | 3.72 | 3.96 | -0.24 |
| Apr | 3.40 | 3.71 | -0.31 |
| May | 3.78 | 3.81 | -0.03 |
| Jun | 4.40 | 4.36 | 0.04 |
| Jul | 5.44 | 5.51 | -0.07 |
| Aug | 5.29 | 5.41 | -0.12 |
| Sep | 5.01 | 4.94 | 0.07 |
| Oct | 3.88 | 4.17 | -0.29 |
| Nov | 3.01 | 3.50 | -0.49 |
| Dec | 3.29 | 3.67 | -0.38 |
47.53 | 49.84 | -2.31 |