| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.24 | 3.51 | -0.27 |
| Feb | 2.80 | 2.94 | -0.14 |
| Mar | 3.80 | 4.12 | -0.32 |
| Apr | 4.52 | 4.73 | -0.21 |
| May | 4.75 | 5.08 | -0.33 |
| Jun | 4.61 | 4.85 | -0.24 |
| Jul | 4.08 | 4.17 | -0.09 |
| Aug | 3.41 | 3.32 | 0.09 |
| Sep | 3.13 | 3.34 | -0.21 |
| Oct | 3.17 | 3.21 | -0.04 |
| Nov | 3.12 | 3.34 | -0.22 |
| Dec | 3.42 | 3.72 | -0.30 |
44.05 | 46.33 | -2.28 |