| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.32 | 4.23 | 0.09 |
| Feb | 4.87 | 4.79 | 0.08 |
| Mar | 5.63 | 5.45 | 0.18 |
| Apr | 5.33 | 5.37 | -0.04 |
| May | 5.37 | 5.81 | -0.44 |
| Jun | 4.58 | 4.53 | 0.05 |
| Jul | 4.31 | 4.57 | -0.26 |
| Aug | 3.77 | 3.56 | 0.21 |
| Sep | 3.87 | 3.94 | -0.07 |
| Oct | 3.55 | 3.90 | -0.35 |
| Nov | 4.52 | 4.27 | 0.25 |
| Dec | 5.12 | 5.33 | -0.21 |
55.24 | 55.75 | -0.51 |