| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.72 | -0.16 |
| Feb | 3.26 | 3.49 | -0.23 |
| Mar | 4.05 | 4.25 | -0.20 |
| Apr | 4.16 | 4.33 | -0.17 |
| May | 3.65 | 3.67 | -0.02 |
| Jun | 4.29 | 4.36 | -0.07 |
| Jul | 3.34 | 3.38 | -0.04 |
| Aug | 3.30 | 3.26 | 0.04 |
| Sep | 4.05 | 3.92 | 0.13 |
| Oct | 5.09 | 5.25 | -0.16 |
| Nov | 4.45 | 4.53 | -0.08 |
| Dec | 4.39 | 4.70 | -0.31 |
47.59 | 48.86 | -1.27 |