| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.62 | 2.72 | -0.10 |
| Feb | 2.20 | 2.36 | -0.16 |
| Mar | 3.30 | 3.35 | -0.05 |
| Apr | 3.37 | 3.56 | -0.19 |
| May | 4.06 | 4.05 | 0.01 |
| Jun | 3.82 | 3.92 | -0.10 |
| Jul | 3.92 | 3.54 | 0.38 |
| Aug | 3.09 | 3.13 | -0.04 |
| Sep | 4.00 | 4.21 | -0.21 |
| Oct | 3.00 | 3.28 | -0.28 |
| Nov | 2.82 | 2.84 | -0.02 |
| Dec | 3.08 | 3.24 | -0.16 |
39.28 | 40.20 | -0.92 |