| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.62 | -0.07 |
| Feb | 3.51 | 3.50 | 0.01 |
| Mar | 4.36 | 4.49 | -0.13 |
| Apr | 4.90 | 4.97 | -0.07 |
| May | 5.02 | 5.24 | -0.22 |
| Jun | 4.17 | 4.59 | -0.42 |
| Jul | 4.23 | 4.27 | -0.04 |
| Aug | 2.99 | 2.94 | 0.05 |
| Sep | 3.46 | 3.54 | -0.08 |
| Oct | 3.55 | 3.60 | -0.05 |
| Nov | 3.87 | 3.86 | 0.01 |
| Dec | 4.17 | 4.24 | -0.07 |
47.78 | 48.86 | -1.08 |