| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.82 | 0.92 | -0.10 |
| Feb | 0.81 | 0.92 | -0.11 |
| Mar | 1.61 | 1.72 | -0.11 |
| Apr | 2.88 | 2.97 | -0.09 |
| May | 4.05 | 4.27 | -0.22 |
| Jun | 4.77 | 5.04 | -0.27 |
| Jul | 4.14 | 4.24 | -0.10 |
| Aug | 4.50 | 4.59 | -0.09 |
| Sep | 3.28 | 3.38 | -0.10 |
| Oct | 2.60 | 2.63 | -0.03 |
| Nov | 1.52 | 1.64 | -0.12 |
| Dec | 1.13 | 1.25 | -0.12 |
32.11 | 33.57 | -1.46 |