| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.76 | 4.09 | -0.33 |
| Feb | 3.30 | 3.61 | -0.31 |
| Mar | 4.82 | 5.28 | -0.46 |
| Apr | 4.31 | 4.67 | -0.36 |
| May | 3.52 | 3.56 | -0.04 |
| Jun | 3.73 | 3.91 | -0.18 |
| Jul | 3.15 | 3.22 | -0.07 |
| Aug | 3.71 | 3.95 | -0.24 |
| Sep | 3.94 | 4.01 | -0.07 |
| Oct | 4.67 | 4.78 | -0.11 |
| Nov | 3.96 | 4.23 | -0.27 |
| Dec | 4.69 | 5.09 | -0.40 |
47.56 | 50.40 | -2.84 |