| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.05 | 4.11 | -0.06 |
| Feb | 3.34 | 3.30 | 0.04 |
| Mar | 4.09 | 3.96 | 0.13 |
| Apr | 4.12 | 4.10 | 0.02 |
| May | 4.03 | 4.07 | -0.04 |
| Jun | 4.27 | 4.43 | -0.16 |
| Jul | 4.48 | 4.56 | -0.08 |
| Aug | 4.41 | 4.65 | -0.24 |
| Sep | 4.16 | 4.23 | -0.07 |
| Oct | 3.33 | 3.20 | 0.13 |
| Nov | 3.61 | 3.46 | 0.15 |
| Dec | 3.98 | 4.07 | -0.09 |
47.87 | 48.14 | -0.27 |