Castle Clinton National Monument has a variety of weather. New York City has hot summers and cold winters. Spring can have heavy rains and Autumn can be cool. http://forecast.weather.gov/MapClick.php?CityName=New+York&state=NY&site=OKX&lat=40.7198&lon=-73.993#.Vqj8OvkrJlZ
Castle Clinton Entrance Fee - $0.00
open to all
Park Specific Passes - $0.00
There are no park-specific passes required or sold at this location.