| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.42 | -0.03 |
| Feb | 3.04 | 3.15 | -0.11 |
| Mar | 4.49 | 4.65 | -0.16 |
| Apr | 3.46 | 3.64 | -0.18 |
| May | 3.25 | 3.40 | -0.15 |
| Jun | 3.75 | 3.78 | -0.03 |
| Jul | 4.39 | 4.38 | 0.01 |
| Aug | 4.73 | 4.70 | 0.03 |
| Sep | 3.81 | 3.96 | -0.15 |
| Oct | 4.15 | 4.36 | -0.21 |
| Nov | 3.37 | 3.41 | -0.04 |
| Dec | 4.29 | 4.50 | -0.21 |
46.12 | 47.35 | -1.23 |