| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.36 | 4.60 | -0.24 |
| Feb | 2.87 | 3.06 | -0.19 |
| Mar | 3.25 | 3.29 | -0.04 |
| Apr | 3.72 | 4.29 | -0.57 |
| May | 4.83 | 5.04 | -0.21 |
| Jun | 5.46 | 5.78 | -0.32 |
| Jul | 4.34 | 4.39 | -0.05 |
| Aug | 5.31 | 6.02 | -0.71 |
| Sep | 5.86 | 6.73 | -0.87 |
| Oct | 5.16 | 5.54 | -0.38 |
| Nov | 4.20 | 4.84 | -0.64 |
| Dec | 4.32 | 4.52 | -0.20 |
53.68 | 58.10 | -4.42 |