| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.70 | 3.07 | 0.63 |
| Feb | 3.12 | 2.73 | 0.39 |
| Mar | 3.95 | 3.49 | 0.46 |
| Apr | 3.85 | 3.53 | 0.32 |
| May | 3.84 | 3.53 | 0.31 |
| Jun | 4.15 | 3.71 | 0.44 |
| Jul | 4.59 | 4.08 | 0.51 |
| Aug | 4.10 | 3.67 | 0.43 |
| Sep | 3.92 | 3.39 | 0.53 |
| Oct | 2.99 | 2.59 | 0.40 |
| Nov | 3.31 | 2.77 | 0.54 |
| Dec | 3.73 | 3.17 | 0.56 |
45.25 | 39.73 | 5.52 |