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Old Tappan, New Jersey, United States has a temperate climate with four distinct seasons. In the winter, temperatures usually range from the 20s to the low 40s Fahrenheit (-6 to 4 Celsius). Snowfall is possible, but not guaranteed. In the spring, temperatures range from the mid-30s to the mid-60s Fahrenheit (2 to 18 Celsius). Rain is common in the spring and thunderstorms are possible. In the summer, temperatures range from the mid-60s to the mid-80s Fahrenheit (18 to 29 Celsius). Humidity can be high in the summer and thunderstorms are common. In the fall, temperatures range from the mid-40s to the mid-60s Fahrenheit (7 to 18 Celsius). It is usually dry in the fall, with occasional rain and the possibility of a light snow.
As of 2020, the city population is 5924.
This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Old Tappan, New Jersey.