| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.46 | 3.90 | -0.44 |
| Feb | 3.00 | 3.42 | -0.42 |
| Mar | 4.38 | 4.90 | -0.52 |
| Apr | 4.05 | 4.42 | -0.37 |
| May | 3.46 | 3.30 | 0.16 |
| Jun | 3.65 | 3.63 | 0.02 |
| Jul | 3.08 | 3.00 | 0.08 |
| Aug | 3.64 | 3.68 | -0.04 |
| Sep | 3.90 | 3.62 | 0.28 |
| Oct | 4.36 | 4.60 | -0.24 |
| Nov | 3.59 | 3.96 | -0.37 |
| Dec | 4.27 | 4.79 | -0.52 |
44.84 | 47.22 | -2.38 |