New Castle, Delaware
According to 800zipcodes, New Castle, Delaware is the oldest city in the state. It is located on the Delaware River, just south of Wilmington. The city has a humid subtropical climate, with hot and humid summers and mild winters. The average high temperature in July is 87 degrees Fahrenheit and the average low temperature in January is 28 degrees Fahrenheit. The history of New Castle dates back to 1651 when Dutch settlers first arrived and established Fort Casimir. The fort…