What time in ny city is the weather cold enough for wearing sweatshirts? namely months.?

Question

remember, months. like october november, blah blah

Answer 1

At night, I've worn a sweatshirt a couple of times already.  But, during the day, still shorts and short sleeves.  For sure mid September you should have a sweatshirt available.

Answer 2

Sep-Jan.

Answer 3

OCTOBER-APRIL

Answer 4

normally I would say mid-late september all the way through march or april