| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.68 | 0.52 | 0.16 |
| Feb | 0.74 | 0.59 | 0.15 |
| Mar | 1.55 | 1.19 | 0.36 |
| Apr | 2.37 | 2.06 | 0.31 |
| May | 2.46 | 2.22 | 0.24 |
| Jun | 2.11 | 2.14 | -0.03 |
| Jul | 3.21 | 2.90 | 0.31 |
| Aug | 2.84 | 3.37 | -0.53 |
| Sep | 1.51 | 1.71 | -0.20 |
| Oct | 1.15 | 0.89 | 0.26 |
| Nov | 0.87 | 0.70 | 0.17 |
| Dec | 0.68 | 0.53 | 0.15 |
20.17 | 18.82 | 1.35 |