| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.16 | 4.31 | -0.15 |
| Feb | 3.67 | 3.89 | -0.22 |
| Mar | 4.51 | 4.57 | -0.06 |
| Apr | 4.30 | 4.39 | -0.09 |
| May | 3.77 | 3.94 | -0.17 |
| Jun | 4.30 | 4.57 | -0.27 |
| Jul | 4.34 | 4.45 | -0.11 |
| Aug | 4.39 | 4.56 | -0.17 |
| Sep | 3.88 | 4.29 | -0.41 |
| Oct | 3.57 | 3.77 | -0.20 |
| Nov | 3.79 | 3.96 | -0.17 |
| Dec | 4.27 | 4.63 | -0.36 |
48.95 | 51.33 | -2.38 |