| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.72 | 4.24 | -0.52 |
| Feb | 2.51 | 3.09 | -0.58 |
| Mar | 3.01 | 3.55 | -0.54 |
| Apr | 3.71 | 3.94 | -0.23 |
| May | 3.62 | 3.84 | -0.22 |
| Jun | 4.10 | 4.06 | 0.04 |
| Jul | 4.41 | 4.49 | -0.08 |
| Aug | 3.82 | 4.14 | -0.32 |
| Sep | 4.17 | 4.44 | -0.27 |
| Oct | 4.34 | 4.73 | -0.39 |
| Nov | 3.86 | 4.45 | -0.59 |
| Dec | 4.02 | 4.54 | -0.52 |
45.29 | 49.51 | -4.22 |