| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.29 | 0.31 | -0.02 |
| Feb | 0.45 | 0.49 | -0.04 |
| Mar | 0.83 | 0.86 | -0.03 |
| Apr | 1.83 | 1.88 | -0.05 |
| May | 2.74 | 2.84 | -0.10 |
| Jun | 2.72 | 2.82 | -0.10 |
| Jul | 2.78 | 2.74 | 0.04 |
| Aug | 2.38 | 2.37 | 0.01 |
| Sep | 1.37 | 1.36 | 0.01 |
| Oct | 1.25 | 1.21 | 0.04 |
| Nov | 0.48 | 0.50 | -0.02 |
| Dec | 0.38 | 0.42 | -0.04 |
17.50 | 17.80 | -0.30 |