| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.54 | 0.55 | -0.01 |
| Feb | 0.40 | 0.34 | 0.06 |
| Mar | 0.90 | 0.92 | -0.02 |
| Apr | 0.77 | 0.79 | -0.02 |
| May | 1.80 | 1.87 | -0.07 |
| Jun | 2.15 | 2.38 | -0.23 |
| Jul | 2.57 | 2.57 | 0.00 |
| Aug | 2.82 | 2.85 | -0.03 |
| Sep | 2.04 | 1.99 | 0.05 |
| Oct | 1.90 | 2.03 | -0.13 |
| Nov | 0.52 | 0.62 | -0.10 |
| Dec | 0.63 | 0.61 | 0.02 |
17.04 | 17.52 | -0.48 |