condition mean min max 4 h after light 15.552007499999998 14.794094 16.309921 8 h after light 14.9582535 14.157928 15.758579 12 h after light 15.226753500000001 14.157928 16.295579 4 h after dark 11.3855235 9.260444 13.510603 8 h after dark 10.180468999999999 9.400986 10.959952 12 h after dark 15.100232 15.100232 15.100232