I was just thinking the same that there is not much time for the concrete to be poured on for some of the next possable jobs. Does it have to be only above 32 deg during the day or both day and night?

The small job estomates I will shot from the hip over the phone and leave myself a way out. At least I qualify them to pay $xxx before I make a call. I have also told people we don't do free estomates for jobs under $xxx. I don't want to spend $5 in fuel and maybe $1 in tolls for a nothing job. The exception would be if I'm near by.