| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.18 | 3.13 | 0.05 |
| Feb | 3.23 | 3.22 | 0.01 |
| Mar | 4.40 | 4.15 | 0.25 |
| Apr | 5.31 | 5.55 | -0.24 |
| May | 5.43 | 5.20 | 0.23 |
| Jun | 3.79 | 3.70 | 0.09 |
| Jul | 3.96 | 3.88 | 0.08 |
| Aug | 3.68 | 3.46 | 0.22 |
| Sep | 3.59 | 3.68 | -0.09 |
| Oct | 3.42 | 3.43 | -0.01 |
| Nov | 4.61 | 4.51 | 0.10 |
| Dec | 3.42 | 3.48 | -0.06 |
48.02 | 47.39 | 0.63 |