| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.83 | -0.34 |
| Feb | 3.09 | 3.52 | -0.43 |
| Mar | 4.06 | 4.58 | -0.52 |
| Apr | 4.25 | 4.73 | -0.48 |
| May | 3.60 | 3.91 | -0.31 |
| Jun | 4.25 | 4.27 | -0.02 |
| Jul | 3.79 | 3.72 | 0.07 |
| Aug | 3.70 | 4.05 | -0.35 |
| Sep | 4.08 | 4.51 | -0.43 |
| Oct | 4.52 | 4.74 | -0.22 |
| Nov | 3.74 | 3.93 | -0.19 |
| Dec | 4.16 | 4.72 | -0.56 |
46.73 | 50.51 | -3.78 |