| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.63 | 0.68 | -0.05 |
| Feb | 0.81 | 0.89 | -0.08 |
| Mar | 1.77 | 1.81 | -0.04 |
| Apr | 2.45 | 2.47 | -0.02 |
| May | 2.46 | 2.55 | -0.09 |
| Jun | 1.90 | 1.79 | 0.11 |
| Jul | 2.25 | 2.22 | 0.03 |
| Aug | 2.23 | 2.32 | -0.09 |
| Sep | 1.61 | 1.64 | -0.03 |
| Oct | 1.23 | 1.30 | -0.07 |
| Nov | 0.83 | 0.87 | -0.04 |
| Dec | 0.68 | 0.75 | -0.07 |
18.85 | 19.29 | -0.44 |