| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.51 | 0.57 | -0.06 |
| Feb | 0.75 | 0.76 | -0.01 |
| Mar | 1.39 | 1.40 | -0.01 |
| Apr | 2.82 | 3.02 | -0.20 |
| May | 3.69 | 3.77 | -0.08 |
| Jun | 4.31 | 4.20 | 0.11 |
| Jul | 3.23 | 3.16 | 0.07 |
| Aug | 3.40 | 3.45 | -0.05 |
| Sep | 2.90 | 2.88 | 0.02 |
| Oct | 2.17 | 2.21 | -0.04 |
| Nov | 1.11 | 1.14 | -0.03 |
| Dec | 0.76 | 0.84 | -0.08 |
27.04 | 27.40 | -0.36 |