| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.75 | 0.85 | -0.10 |
| Feb | 0.72 | 0.73 | -0.01 |
| Mar | 1.21 | 1.22 | -0.01 |
| Apr | 1.96 | 2.05 | -0.09 |
| May | 3.09 | 3.20 | -0.11 |
| Jun | 4.41 | 4.46 | -0.05 |
| Jul | 4.00 | 4.09 | -0.09 |
| Aug | 3.30 | 3.30 | 0.00 |
| Sep | 2.98 | 3.23 | -0.25 |
| Oct | 2.69 | 2.70 | -0.01 |
| Nov | 1.35 | 1.43 | -0.08 |
| Dec | 1.00 | 1.09 | -0.09 |
27.46 | 28.35 | -0.89 |