| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.51 | 0.56 | -0.05 |
| Feb | 0.77 | 0.74 | 0.03 |
| Mar | 1.40 | 1.37 | 0.03 |
| Apr | 2.87 | 2.98 | -0.11 |
| May | 3.75 | 3.68 | 0.07 |
| Jun | 4.37 | 4.25 | 0.12 |
| Jul | 3.25 | 3.23 | 0.02 |
| Aug | 3.43 | 3.39 | 0.04 |
| Sep | 2.88 | 2.84 | 0.04 |
| Oct | 2.22 | 2.30 | -0.08 |
| Nov | 1.14 | 1.12 | 0.02 |
| Dec | 0.78 | 0.82 | -0.04 |
27.37 | 27.28 | 0.09 |