| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.82 | 4.98 | -0.16 |
| Feb | 3.40 | 3.47 | -0.07 |
| Mar | 3.06 | 3.43 | -0.37 |
| Apr | 2.08 | 2.34 | -0.26 |
| May | 1.32 | 1.34 | -0.02 |
| Jun | 0.66 | 0.65 | 0.01 |
| Jul | 0.26 | 0.23 | 0.03 |
| Aug | 0.26 | 0.23 | 0.03 |
| Sep | 0.47 | 0.53 | -0.06 |
| Oct | 1.69 | 1.95 | -0.26 |
| Nov | 3.87 | 4.02 | -0.15 |
| Dec | 5.63 | 5.90 | -0.27 |
27.52 | 29.07 | -1.55 |