| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.22 | 3.41 | -0.19 |
| Feb | 3.34 | 3.37 | -0.03 |
| Mar | 4.44 | 4.50 | -0.06 |
| Apr | 4.43 | 4.53 | -0.10 |
| May | 5.05 | 5.14 | -0.09 |
| Jun | 4.77 | 4.81 | -0.04 |
| Jul | 5.00 | 4.83 | 0.17 |
| Aug | 3.44 | 3.30 | 0.14 |
| Sep | 3.46 | 3.45 | 0.01 |
| Oct | 3.34 | 3.39 | -0.05 |
| Nov | 3.11 | 3.17 | -0.06 |
| Dec | 3.77 | 3.94 | -0.17 |
47.37 | 47.84 | -0.47 |