| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.93 | 4.59 | -0.66 |
| Feb | 3.25 | 3.67 | -0.42 |
| Mar | 3.98 | 4.40 | -0.42 |
| Apr | 3.96 | 4.46 | -0.50 |
| May | 3.96 | 4.24 | -0.28 |
| Jun | 4.24 | 4.76 | -0.52 |
| Jul | 4.53 | 5.05 | -0.52 |
| Aug | 4.36 | 4.85 | -0.49 |
| Sep | 4.06 | 4.63 | -0.57 |
| Oct | 3.28 | 3.50 | -0.22 |
| Nov | 3.47 | 3.86 | -0.39 |
| Dec | 3.81 | 4.41 | -0.60 |
46.83 | 52.42 | -5.59 |