| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.22 | 0.26 | -0.04 |
| Feb | 0.30 | 0.36 | -0.06 |
| Mar | 0.63 | 0.70 | -0.07 |
| Apr | 1.41 | 1.47 | -0.06 |
| May | 2.07 | 2.13 | -0.06 |
| Jun | 2.17 | 2.31 | -0.14 |
| Jul | 3.07 | 2.99 | 0.08 |
| Aug | 2.52 | 2.53 | -0.01 |
| Sep | 0.88 | 0.95 | -0.07 |
| Oct | 1.10 | 1.14 | -0.04 |
| Nov | 0.34 | 0.37 | -0.03 |
| Dec | 0.30 | 0.35 | -0.05 |
15.01 | 15.56 | -0.55 |