| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.28 | 4.41 | -0.13 |
| Feb | 3.75 | 3.91 | -0.16 |
| Mar | 4.51 | 4.67 | -0.16 |
| Apr | 4.26 | 4.43 | -0.17 |
| May | 4.03 | 4.24 | -0.21 |
| Jun | 4.32 | 4.55 | -0.23 |
| Jul | 4.49 | 4.64 | -0.15 |
| Aug | 4.36 | 4.78 | -0.42 |
| Sep | 4.13 | 4.38 | -0.25 |
| Oct | 3.71 | 3.86 | -0.15 |
| Nov | 3.82 | 4.08 | -0.26 |
| Dec | 4.45 | 4.82 | -0.37 |
50.11 | 52.77 | -2.66 |