| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.69 | 4.09 | -0.40 |
| Feb | 3.26 | 3.62 | -0.36 |
| Mar | 4.77 | 5.31 | -0.54 |
| Apr | 4.29 | 4.68 | -0.39 |
| May | 3.50 | 3.56 | -0.06 |
| Jun | 3.65 | 3.88 | -0.23 |
| Jul | 3.06 | 3.18 | -0.12 |
| Aug | 3.65 | 3.93 | -0.28 |
| Sep | 3.89 | 3.96 | -0.07 |
| Oct | 4.53 | 4.79 | -0.26 |
| Nov | 3.91 | 4.24 | -0.33 |
| Dec | 4.59 | 5.10 | -0.51 |
46.79 | 50.34 | -3.55 |