| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.70 | 3.90 | -0.20 |
| Feb | 3.59 | 3.61 | -0.02 |
| Mar | 3.77 | 3.85 | -0.08 |
| Apr | 3.20 | 3.22 | -0.02 |
| May | 3.50 | 3.57 | -0.07 |
| Jun | 5.18 | 5.05 | 0.13 |
| Jul | 5.31 | 5.28 | 0.03 |
| Aug | 5.06 | 5.11 | -0.05 |
| Sep | 4.31 | 4.39 | -0.08 |
| Oct | 3.21 | 3.32 | -0.11 |
| Nov | 2.86 | 2.90 | -0.04 |
| Dec | 3.70 | 3.74 | -0.04 |
47.39 | 47.94 | -0.55 |