Another reason fish leave the shallow areas is water clarity. Fish often prefer the darkness of deeper water on those hot sunny days, especially in extremely clear water. This does not mean fish are never shallow in July, because they will usually venture into shallow water early in the morning and late in the evening to feed. One other reason fish venture into deeper water would be cover. Weed growth is usually at its fullest potential at this time of the year and often can reach depths of 12 to 20 feet.
Fish seek out the deepest weed beds and hold on or near the bottom.
Finally, one of the most overlooked areas in seeking out deep fish is an imaginary line called the thermo-cline. This is where the warm water meets the cold water. The thermo-cline can happen at any depth range and usually occurs about half the distance of the depth of water depending on the lake. Some electronics will show this area either as a change in screen color from a lighter to darker gray or a fuzzy area half way down the screen. Fish will often suspend just below this line where the water is cooler.