| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.00 | 3.34 | -0.34 |
| Feb | 2.71 | 2.92 | -0.21 |
| Mar | 3.96 | 4.23 | -0.27 |
| Apr | 3.41 | 3.57 | -0.16 |
| May | 3.44 | 3.82 | -0.38 |
| Jun | 4.26 | 4.32 | -0.06 |
| Jul | 4.42 | 4.40 | 0.02 |
| Aug | 4.27 | 4.57 | -0.30 |
| Sep | 4.08 | 4.31 | -0.23 |
| Oct | 3.71 | 4.00 | -0.29 |
| Nov | 3.11 | 3.22 | -0.11 |
| Dec | 3.77 | 4.05 | -0.28 |
44.14 | 46.75 | -2.61 |