What effect does the Great Lakes have on the climate in coastal areas?

In addition to reducing the annual temperature in coastal areas, it also increases the winter precipitation in the downwind direction (in winter, under the influence of cold air, the northwest wind sweeps the relatively warm lake, absorbing a lot of heat and water vapor, resulting in a large amount of snowfall falling on the southeast banks of the lake, forming the Zita Law Belt there). In addition, due to the cool summer in the lake area, the convective weather is reduced.