condition mean min max 4 h after light 17.847009999999997 17.574837 18.119183 8 h after light 12.889994 11.87754 13.902448 12 h after light 11.660914 10.433497 12.888331 4 h after dark 11.441381 10.713503 12.169259 8 h after dark 12.277226500000001 12.148319 12.406134 12 h after dark 12.406134 12.406134 12.406134