| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.41 | 3.61 | -0.20 |
| Feb | 2.89 | 3.14 | -0.25 |
| Mar | 3.70 | 3.91 | -0.21 |
| Apr | 3.38 | 3.66 | -0.28 |
| May | 3.73 | 3.79 | -0.06 |
| Jun | 4.33 | 4.31 | 0.02 |
| Jul | 5.38 | 5.51 | -0.13 |
| Aug | 5.29 | 5.40 | -0.11 |
| Sep | 4.96 | 5.06 | -0.10 |
| Oct | 3.87 | 4.13 | -0.26 |
| Nov | 2.97 | 3.43 | -0.46 |
| Dec | 3.33 | 3.62 | -0.29 |
47.24 | 49.57 | -2.33 |