| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.83 | 0.94 | -0.11 |
| Feb | 0.82 | 0.91 | -0.09 |
| Mar | 1.65 | 1.69 | -0.04 |
| Apr | 2.94 | 2.92 | 0.02 |
| May | 4.18 | 4.24 | -0.06 |
| Jun | 4.82 | 5.02 | -0.20 |
| Jul | 4.23 | 4.30 | -0.07 |
| Aug | 4.57 | 4.41 | 0.16 |
| Sep | 3.39 | 3.28 | 0.11 |
| Oct | 2.72 | 2.75 | -0.03 |
| Nov | 1.61 | 1.67 | -0.06 |
| Dec | 1.18 | 1.27 | -0.09 |
32.94 | 33.40 | -0.46 |