| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.06 | 5.46 | -0.40 |
| Feb | 5.19 | 5.29 | -0.10 |
| Mar | 5.34 | 5.31 | 0.03 |
| Apr | 5.04 | 5.51 | -0.47 |
| May | 4.35 | 4.67 | -0.32 |
| Jun | 4.65 | 4.82 | -0.17 |
| Jul | 5.05 | 5.62 | -0.57 |
| Aug | 3.57 | 3.72 | -0.15 |
| Sep | 4.27 | 4.46 | -0.19 |
| Oct | 3.44 | 3.27 | 0.17 |
| Nov | 4.61 | 4.58 | 0.03 |
| Dec | 5.96 | 5.81 | 0.15 |
56.53 | 58.52 | -1.99 |