| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.32 | 3.65 | -0.33 |
| Feb | 2.84 | 3.00 | -0.16 |
| Mar | 4.05 | 4.23 | -0.18 |
| Apr | 3.92 | 4.05 | -0.13 |
| May | 3.79 | 3.83 | -0.04 |
| Jun | 4.20 | 4.45 | -0.25 |
| Jul | 4.22 | 4.26 | -0.04 |
| Aug | 4.10 | 4.42 | -0.32 |
| Sep | 4.24 | 4.34 | -0.10 |
| Oct | 4.21 | 4.24 | -0.03 |
| Nov | 3.44 | 3.49 | -0.05 |
| Dec | 4.16 | 4.39 | -0.23 |
46.49 | 48.35 | -1.86 |