| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.04 | 3.24 | -0.20 |
| Feb | 2.17 | 2.42 | -0.25 |
| Mar | 2.66 | 2.89 | -0.23 |
| Apr | 3.42 | 3.37 | 0.05 |
| May | 3.28 | 3.34 | -0.06 |
| Jun | 3.46 | 3.75 | -0.29 |
| Jul | 3.61 | 3.30 | 0.31 |
| Aug | 3.36 | 3.17 | 0.19 |
| Sep | 4.04 | 3.93 | 0.11 |
| Oct | 3.87 | 4.21 | -0.34 |
| Nov | 3.37 | 3.69 | -0.32 |
| Dec | 3.44 | 3.71 | -0.27 |
39.72 | 41.02 | -1.30 |