| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.39 | 0.43 | -0.04 |
| Feb | 0.46 | 0.48 | -0.02 |
| Mar | 0.97 | 1.01 | -0.04 |
| Apr | 1.75 | 1.78 | -0.03 |
| May | 2.13 | 2.19 | -0.06 |
| Jun | 2.11 | 2.23 | -0.12 |
| Jul | 3.36 | 3.12 | 0.24 |
| Aug | 2.92 | 3.42 | -0.50 |
| Sep | 1.34 | 1.67 | -0.33 |
| Oct | 0.90 | 0.82 | 0.08 |
| Nov | 0.52 | 0.59 | -0.07 |
| Dec | 0.37 | 0.43 | -0.06 |
17.22 | 18.17 | -0.95 |