to survive, above freezing, mid/low 30's at night

to thrive, prob above 60'F and lots of light, 10-12 hrs

My meyers survive dips in to the low 20's but take some damage, they are in the ground though and I am sure it would be worse for them if they were in a pot.

Please don't forget about your mix.

If you don't have them potted in a very porous mix that will dry out quickly between waterings in temps that low, you will lose them no matter what to root rot.

Cold and wet do not bode well for citrus.

Mike:-)