| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.03 | 4.20 | -0.17 |
| Feb | 3.57 | 3.81 | -0.24 |
| Mar | 3.72 | 3.80 | -0.08 |
| Apr | 3.47 | 3.54 | -0.07 |
| May | 4.27 | 4.29 | -0.02 |
| Jun | 5.24 | 5.09 | 0.15 |
| Jul | 6.39 | 6.51 | -0.12 |
| Aug | 7.20 | 7.38 | -0.18 |
| Sep | 7.64 | 7.88 | -0.24 |
| Oct | 4.21 | 4.72 | -0.51 |
| Nov | 3.71 | 4.06 | -0.35 |
| Dec | 3.95 | 4.08 | -0.13 |
57.40 | 59.36 | -1.96 |