Well cool growing cyms can take temps to freezing or just below for
short periods - like a couple hours
I protect mine from frost by moving them onto the porch on those nights.
I realize upstate NY is going to be much colder than nor-cal in the winter - but it's summer now - I think you are safe to leave them outside until overnight lows are around 50 - or even a bit lower, and the temp drop in early fall (? - don't know what time of year you start to get into low 50s overnight) should help to initiate blooming.
I am sure there are others on the board who grow cyms in a climate more similar to yours than mine is - so I shall defer to them, but for the time being I am sure the cyms are fine to remain outside
That all being said I have been presuming you have cool growing cyms - I don't have experience with warm growers, but they should be fine to remain outside in the summer I would think.