| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.64 | -0.17 |
| Feb | 3.10 | 3.19 | -0.09 |
| Mar | 4.33 | 4.32 | 0.01 |
| Apr | 4.11 | 4.26 | -0.15 |
| May | 3.57 | 3.52 | 0.05 |
| Jun | 3.98 | 3.84 | 0.14 |
| Jul | 3.39 | 3.43 | -0.04 |
| Aug | 3.74 | 4.05 | -0.31 |
| Sep | 3.96 | 4.01 | -0.05 |
| Oct | 4.23 | 4.24 | -0.01 |
| Nov | 3.48 | 3.46 | 0.02 |
| Dec | 4.49 | 4.59 | -0.10 |
45.85 | 46.55 | -0.70 |