| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.86 | -0.30 |
| Feb | 3.20 | 3.53 | -0.33 |
| Mar | 4.25 | 4.55 | -0.30 |
| Apr | 4.39 | 4.72 | -0.33 |
| May | 3.94 | 4.09 | -0.15 |
| Jun | 4.31 | 4.18 | 0.13 |
| Jul | 3.91 | 4.02 | -0.11 |
| Aug | 3.76 | 4.13 | -0.37 |
| Sep | 4.55 | 4.52 | 0.03 |
| Oct | 4.77 | 4.99 | -0.22 |
| Nov | 3.89 | 4.02 | -0.13 |
| Dec | 4.34 | 4.68 | -0.34 |
48.87 | 51.29 | -2.42 |