Yes! Oddly enough they would still behave calmly from cold weather even if the temp is 80*F.
I believe it's due to the barometric pressure of the season. I know BP's use High Pressure frontal systems and Low Pressure frontal systems (I think it's fronts, it may be barometric pressure of seasons as well) to gauge opptimum breeding condtions.
My turtles behave the same way. They sleep most of the winter, even though it's 75*F in my house. But as soon as they feel Springtime, they are all active again. If it's Spring/Summer and it's storming, my turtles will all "bunker down" too, as if it's storming in thier tanks....... so I think they can definitally feel the different pressures of weather.. It's odd, but it's just nature