I found the information on the internet easier than I remember last time. Average mean number of days with a temp of less than 32* F for 49 years in Montgomery AL. January 13 days, February 8 days,March 2 days, April 2 days, November 4 days, December 11 days. Annual days less than 32*F=39 days each year in Montgomery AL. That's what I found but when I add the days I get 40. Maybe a weird anomaly. I still say with what I'm growing right now in ground it's usually less than that to worry about. If trees are dormant I don't worry unless temps are predicted below 28* F. I also don't remove frost cloth if freezing temps are predicted again within a week or so because I worry the temps might be worse. One year I was lazy or maybe less knowledgable than now and left the frost cloth on most of the winter. I had to irrigate because my temps were higher with the frost cloth and the rain we had could not all get inside. My stupidity really. I am still learning. If our temps are predicted to be less than 20*F I cover everything with frost cloth and a plastic tarp on top too. I have to be very careful because it can get very hot inside with the plastic on during the day. If careless I could invoke a green flush while having unseasonably low temps. I guess I'd have to watch the forecast really close to try to protect the tender leaves. All averages would be thrown out the window and I'd have an almost worse case scenario. Worse case is to lose power, generator give out of gas, and snow or ice cave in my pvc bows and frost cloth. Then I would cry and pray. So far , so good ! Tom