| Term | Definition |
| Drizzle | drops that appear to float while following air currents, .5 millimeter/.02 inches |
| Rain | fall from nimbostratus or cumulunimbus clouds, .5 millimeter/.02 inches |
| Freezing Rain | rain that falls in liquid form but freezes upon impact to form a coating of glaze on the ground and exposed objects |
| Freezing Drizzle | The same as freezing rain, but bigger droplets |
| Ice Pellets (sleet) | 5 millimeters/.2 inches or less in diameter. |
| Snow | produced in supercooled clouds where water vapor is deposited. 2 mm/.8 inches |
| Hail | forms during thunderstorms from cumulonimbus clouds, .75 inches or greater |