| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.62 | 0.67 | -0.05 |
| Feb | 0.78 | 0.81 | -0.03 |
| Mar | 1.41 | 1.47 | -0.06 |
| Apr | 2.79 | 2.90 | -0.11 |
| May | 3.72 | 3.73 | -0.01 |
| Jun | 4.65 | 4.63 | 0.02 |
| Jul | 3.49 | 3.47 | 0.02 |
| Aug | 3.26 | 3.41 | -0.15 |
| Sep | 2.99 | 3.03 | -0.04 |
| Oct | 2.22 | 2.25 | -0.03 |
| Nov | 1.20 | 1.30 | -0.10 |
| Dec | 0.82 | 0.93 | -0.11 |
27.95 | 28.60 | -0.65 |