What impact do the Great Lakes have on the climate of coastal areas?

In addition to narrowing the annual temperature range in the coastal areas, it also increases the winter precipitation downwind (under the influence of cold air in winter, the northwest wind passes over the relatively warm lake surface, absorbing a large amount of heat and water vapor, causing large amounts of snow to fall on the southeastern shores of the lakes, forming deep snow zones there). In addition, because the lake area is cooler in summer, convective weather decreases.