IN the fall, starting around September, the lake levels slowly drop down. Depending on rainfall and other factors, it may be slight or drasticly reduced by November. A year ago the water levels were high until November.
The water levels throughout the summer are usually good, especially for boating and fishing.
I spent many years on Lake Nokomis, the above describes a trend. In winter, people snowmobile and ice fish in parts of the lake. The summers here are best. It is a big lake. Some use to have pontoon boat parties with several boats tied side by side together.