Celsius? Or Fahrenheit? If Celsius then yes you should be fine just the light cycle is 12/12 now outside
plus light is already 12/12 or less, you're going to flower before you get any real growth, probably not worth your time and effort
It might survive the cold. But the light cycle now outdoors is short days long nights. Not ideal for vegetative growth. Now I have had to hold off the flowering for varies reasons. I just hung cfls from sticks and put them on timers to stay on for 5 minutes every hour. Keeps the flowering hormone down.
your posts are 15 minutes apart, if you don't have the patience to wait for a reply, I can only imagine how your crop would turn out