| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.29 | 0.32 | -0.03 |
| Feb | 0.45 | 0.45 | 0.00 |
| Mar | 0.80 | 0.85 | -0.05 |
| Apr | 1.82 | 1.77 | 0.05 |
| May | 2.78 | 2.82 | -0.04 |
| Jun | 2.72 | 2.68 | 0.04 |
| Jul | 2.73 | 2.68 | 0.05 |
| Aug | 2.27 | 2.34 | -0.07 |
| Sep | 1.36 | 1.29 | 0.07 |
| Oct | 1.18 | 1.20 | -0.02 |
| Nov | 0.49 | 0.49 | 0.00 |
| Dec | 0.37 | 0.40 | -0.03 |
17.26 | 17.29 | -0.03 |