| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.57 | 0.58 | -0.01 |
| Feb | 0.81 | 0.77 | 0.04 |
| Mar | 1.44 | 1.40 | 0.04 |
| Apr | 2.90 | 2.89 | 0.01 |
| May | 3.87 | 3.89 | -0.02 |
| Jun | 4.54 | 4.32 | 0.22 |
| Jul | 3.24 | 3.29 | -0.05 |
| Aug | 3.23 | 3.23 | 0.00 |
| Sep | 3.02 | 2.75 | 0.27 |
| Oct | 2.29 | 2.31 | -0.02 |
| Nov | 1.21 | 1.20 | 0.01 |
| Dec | 0.84 | 0.85 | -0.01 |
27.96 | 27.48 | 0.48 |