| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.22 | 3.61 | -0.39 |
| Feb | 2.87 | 3.04 | -0.17 |
| Mar | 4.12 | 4.16 | -0.04 |
| Apr | 3.70 | 3.90 | -0.20 |
| May | 3.37 | 3.34 | 0.03 |
| Jun | 3.94 | 3.81 | 0.13 |
| Jul | 3.47 | 3.17 | 0.30 |
| Aug | 4.07 | 3.84 | 0.23 |
| Sep | 3.77 | 3.67 | 0.10 |
| Oct | 3.83 | 4.04 | -0.21 |
| Nov | 3.22 | 3.24 | -0.02 |
| Dec | 4.17 | 4.42 | -0.25 |
43.75 | 44.24 | -0.49 |