Yes, there was a early morning frost in FL that day....it was in the 40s the night before and was about 50 or so when it was launched. The Oring frooze up which in turn created the seal to break and letting fuel spill out. Im not 100% on this but im pretty sure i remember it correctly.
I was in 5th grade, watching it on TV in class when it happened. My teacher quickly turned off the TV knowing what had happened cause she didnt want the class to worry.
It was actually in the high 50s last night where i am (20mins west of Fort Liquiordale).