| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.27 | 3.55 | -0.28 |
| Feb | 2.90 | 2.97 | -0.07 |
| Mar | 4.17 | 4.07 | 0.10 |
| Apr | 3.73 | 3.83 | -0.10 |
| May | 3.40 | 3.48 | -0.08 |
| Jun | 3.91 | 3.93 | -0.02 |
| Jul | 3.62 | 3.31 | 0.31 |
| Aug | 4.11 | 3.90 | 0.21 |
| Sep | 3.81 | 3.72 | 0.09 |
| Oct | 3.88 | 3.90 | -0.02 |
| Nov | 3.25 | 3.13 | 0.12 |
| Dec | 4.19 | 4.36 | -0.17 |
44.24 | 44.15 | 0.09 |