| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.61 | 4.83 | -0.22 |
| Feb | 4.71 | 5.00 | -0.29 |
| Mar | 4.87 | 5.19 | -0.32 |
| Apr | 4.06 | 4.30 | -0.24 |
| May | 3.38 | 3.95 | -0.57 |
| Jun | 5.54 | 6.35 | -0.81 |
| Jul | 6.61 | 7.42 | -0.81 |
| Aug | 6.82 | 6.90 | -0.08 |
| Sep | 5.61 | 5.82 | -0.21 |
| Oct | 3.18 | 3.52 | -0.34 |
| Nov | 3.58 | 3.61 | -0.03 |
| Dec | 4.52 | 4.77 | -0.25 |
57.49 | 61.66 | -4.17 |