| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.96 | 4.10 | -0.14 |
| Feb | 3.83 | 3.87 | -0.04 |
| Mar | 4.41 | 4.49 | -0.08 |
| Apr | 3.08 | 3.21 | -0.13 |
| May | 3.36 | 3.23 | 0.13 |
| Jun | 4.23 | 4.06 | 0.17 |
| Jul | 3.73 | 3.65 | 0.08 |
| Aug | 3.92 | 3.89 | 0.03 |
| Sep | 3.31 | 3.55 | -0.24 |
| Oct | 3.10 | 3.14 | -0.04 |
| Nov | 3.52 | 3.60 | -0.08 |
| Dec | 4.51 | 4.49 | 0.02 |
44.96 | 45.28 | -0.32 |