| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.76 | 4.06 | -0.30 |
| Feb | 3.31 | 3.58 | -0.27 |
| Mar | 4.34 | 4.67 | -0.33 |
| Apr | 4.42 | 4.72 | -0.30 |
| May | 3.89 | 4.23 | -0.34 |
| Jun | 4.52 | 4.77 | -0.25 |
| Jul | 4.18 | 4.23 | -0.05 |
| Aug | 4.08 | 4.45 | -0.37 |
| Sep | 4.61 | 4.62 | -0.01 |
| Oct | 4.99 | 5.46 | -0.47 |
| Nov | 4.15 | 4.31 | -0.16 |
| Dec | 4.42 | 4.91 | -0.49 |
50.67 | 54.01 | -3.34 |