Precipitation: This is the main source of water for most lakes. Precipitation includes rain, snow, sleet, and hail. When precipitation falls on land, some of it runs off into surface water bodies, like lakes.
Snowmelt: In areas with a lot of snowfall, snowmelt can be a significant source of water for lakes. When the snow melts, it runs off into surface water bodies, like lakes.
Groundwater: Groundwater is water that is stored underground in aquifers. Groundwater can discharge into surface water bodies, like lakes, through springs and seeps.
Interconnected surface water: Lakes can also be connected to other surface water bodies, like rivers and streams. Water can flow between these connected surface water bodies.
Glaciers: In areas with glaciers, glaciers can be a source of water for lakes. When glaciers melt, they release water into the environment, which can flow into surface water bodies, like lakes.
