| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.40 | 1.42 | -0.02 |
| Feb | 1.43 | 1.46 | -0.03 |
| Mar | 2.14 | 2.08 | 0.06 |
| Apr | 3.72 | 3.84 | -0.12 |
| May | 4.18 | 4.31 | -0.13 |
| Jun | 5.44 | 5.39 | 0.05 |
| Jul | 4.59 | 4.36 | 0.23 |
| Aug | 4.18 | 4.20 | -0.02 |
| Sep | 3.62 | 3.45 | 0.17 |
| Oct | 2.83 | 2.84 | -0.01 |
| Nov | 2.22 | 2.23 | -0.01 |
| Dec | 1.62 | 1.69 | -0.07 |
37.37 | 37.27 | 0.10 |