Hewlett Harbor is located in Nassau County, New York. There are roughly 1,262 residents, living in 416 households. The average temperature for Hewlett Harbor this time of the year is low of 67F and high of 83F. On average, Hewlett Harbor gets about 4.41 inches of precipitation in July. Most residents are home owners (97%), have a post secondary degree (61%) and are married, no kids (45%).
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