| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.79 | 0.92 | -0.13 |
| Feb | 0.82 | 0.91 | -0.09 |
| Mar | 1.62 | 1.65 | -0.03 |
| Apr | 2.85 | 3.08 | -0.23 |
| May | 4.17 | 4.25 | -0.08 |
| Jun | 4.72 | 4.88 | -0.16 |
| Jul | 4.16 | 4.25 | -0.09 |
| Aug | 4.54 | 4.43 | 0.11 |
| Sep | 3.34 | 3.38 | -0.04 |
| Oct | 2.81 | 2.96 | -0.15 |
| Nov | 1.65 | 1.69 | -0.04 |
| Dec | 1.14 | 1.27 | -0.13 |
32.61 | 33.67 | -1.06 |