Webget the monthly weather forecast for new york, ny, including daily high/low, historical averages, to help you plan ahead. Webthe average high and low temperatures are listed below monthly and annually for new york city, in both degrees fahrenheit and celsius. Maximums and minimums are only. Webweather. com brings you the most accurate monthly weather forecast for manhattan, ny with average/record and high/low temperatures, precipitation and more. Webweather. com brings you the most accurate monthly weather forecast for manhattan, ny, united states with average/record and high/low temperatures, precipitation and more. Webnew york's climate is very changeable with moderate precipitation all over the year, some heat waves in summer and very cool weather in winter and even in early spring. Webnew york city, ny's climate averages. Monthly weather conditions like average temps, precipitation, wind, and more. New york city's yearly averages for humidity, fog, sun,.