| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.46 | 3.55 | -0.09 |
| Feb | 2.79 | 2.84 | -0.05 |
| Mar | 4.14 | 4.23 | -0.09 |
| Apr | 3.72 | 3.73 | -0.01 |
| May | 3.92 | 3.96 | -0.04 |
| Jun | 4.32 | 4.22 | 0.10 |
| Jul | 4.81 | 4.74 | 0.07 |
| Aug | 4.44 | 4.78 | -0.34 |
| Sep | 4.43 | 4.44 | -0.01 |
| Oct | 4.06 | 4.09 | -0.03 |
| Nov | 3.35 | 3.28 | 0.07 |
| Dec | 4.32 | 4.41 | -0.09 |
47.76 | 48.27 | -0.51 |