| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.04 | 4.06 | -0.02 |
| Feb | 3.49 | 3.52 | -0.03 |
| Mar | 4.68 | 4.82 | -0.14 |
| Apr | 4.47 | 4.62 | -0.15 |
| May | 3.58 | 3.54 | 0.04 |
| Jun | 4.11 | 4.28 | -0.17 |
| Jul | 3.55 | 3.59 | -0.04 |
| Aug | 3.94 | 4.03 | -0.09 |
| Sep | 4.17 | 4.09 | 0.08 |
| Oct | 5.00 | 5.10 | -0.10 |
| Nov | 4.32 | 4.29 | 0.03 |
| Dec | 4.85 | 5.09 | -0.24 |
50.20 | 51.03 | -0.83 |