Wellesley Island is located in Jefferson County, New York. There are roughly 555 residents, living in 266 households. The average temperature for Wellesley Island this time of the year is low of 16F and high of 32F. On average, Wellesley Island gets about 3.18 inches of precipitation in December. Most residents are home owners (78%), have a post secondary degree (54%) and are single, no kids (43%).
Data provided by Home Junction