| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.52 | 2.77 | -0.25 |
| Feb | 1.77 | 2.04 | -0.27 |
| Mar | 1.94 | 2.02 | -0.08 |
| Apr | 1.50 | 1.57 | -0.07 |
| May | 1.34 | 1.40 | -0.06 |
| Jun | 1.10 | 1.23 | -0.13 |
| Jul | 0.57 | 0.61 | -0.04 |
| Aug | 0.61 | 0.65 | -0.04 |
| Sep | 0.96 | 0.99 | -0.03 |
| Oct | 1.91 | 1.90 | 0.01 |
| Nov | 3.14 | 3.34 | -0.20 |
| Dec | 2.94 | 2.98 | -0.04 |
20.30 | 21.50 | -1.20 |