| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.85 | -0.13 |
| Feb | 0.71 | 0.79 | -0.08 |
| Mar | 1.12 | 1.20 | -0.08 |
| Apr | 1.90 | 2.02 | -0.12 |
| May | 3.09 | 2.96 | 0.13 |
| Jun | 4.43 | 4.45 | -0.02 |
| Jul | 3.82 | 3.97 | -0.15 |
| Aug | 3.40 | 3.32 | 0.08 |
| Sep | 3.16 | 3.40 | -0.24 |
| Oct | 2.64 | 2.80 | -0.16 |
| Nov | 1.37 | 1.45 | -0.08 |
| Dec | 1.02 | 1.18 | -0.16 |
27.38 | 28.39 | -1.01 |