| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.62 | 3.85 | -0.23 |
| Feb | 3.05 | 3.32 | -0.27 |
| Mar | 4.42 | 4.73 | -0.31 |
| Apr | 4.12 | 4.40 | -0.28 |
| May | 3.56 | 3.48 | 0.08 |
| Jun | 3.89 | 4.07 | -0.18 |
| Jul | 3.37 | 3.52 | -0.15 |
| Aug | 3.79 | 4.15 | -0.36 |
| Sep | 4.11 | 4.43 | -0.32 |
| Oct | 4.59 | 4.65 | -0.06 |
| Nov | 3.73 | 4.02 | -0.29 |
| Dec | 4.47 | 4.75 | -0.28 |
46.72 | 49.37 | -2.65 |