| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.96 | 1.09 | -0.13 |
| Feb | 0.92 | 1.02 | -0.10 |
| Mar | 1.39 | 1.42 | -0.03 |
| Apr | 2.38 | 2.44 | -0.06 |
| May | 3.15 | 3.20 | -0.05 |
| Jun | 4.38 | 4.50 | -0.12 |
| Jul | 4.04 | 4.08 | -0.04 |
| Aug | 3.52 | 3.53 | -0.01 |
| Sep | 3.30 | 3.52 | -0.22 |
| Oct | 2.94 | 2.89 | 0.05 |
| Nov | 1.74 | 1.82 | -0.08 |
| Dec | 1.31 | 1.51 | -0.20 |
30.03 | 31.02 | -0.99 |