condition mean min max 3 h after light 20.466 15.184 23.6599 6 h after light 16.81533333333333 14.9331 18.29 9 h after light 10.40592 8.36546 11.4514 12 h after light 10.2854375 8.37264 13.3415 3 h after dark 8.580146666666668 8.09791 8.83153 6 h after dark 9.08483 7.01599 10.2159 9 h after dark 13.6325 12.1174 14.6072 12 h after dark 15.3428 12.0873 18.5983