| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.33 | 0.35 | -0.02 |
| Feb | 0.45 | 0.52 | -0.07 |
| Mar | 0.86 | 0.97 | -0.11 |
| Apr | 1.91 | 1.90 | 0.01 |
| May | 3.00 | 3.00 | 0.00 |
| Jun | 3.01 | 3.19 | -0.18 |
| Jul | 3.08 | 2.94 | 0.14 |
| Aug | 2.37 | 2.41 | -0.04 |
| Sep | 1.30 | 1.31 | -0.01 |
| Oct | 1.38 | 1.49 | -0.11 |
| Nov | 0.48 | 0.53 | -0.05 |
| Dec | 0.37 | 0.37 | 0.00 |
18.54 | 18.98 | -0.44 |