| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.10 | 3.20 | -0.10 |
| Feb | 2.60 | 2.62 | -0.02 |
| Mar | 3.35 | 3.37 | -0.02 |
| Apr | 3.53 | 3.49 | 0.04 |
| May | 4.01 | 4.03 | -0.02 |
| Jun | 4.55 | 4.53 | 0.02 |
| Jul | 4.33 | 4.31 | 0.02 |
| Aug | 3.85 | 3.82 | 0.03 |
| Sep | 3.54 | 3.46 | 0.08 |
| Oct | 3.09 | 3.14 | -0.05 |
| Nov | 3.03 | 3.03 | 0.00 |
| Dec | 3.22 | 3.26 | -0.04 |
42.20 | 42.26 | -0.06 |