condition mean min max 0 h after light 30.96665 30.6971 31.2362 4 h after light 12.6456 12.5829 12.7083 8 h after light 13.015 12.3515 13.6785 4 h after dark 20.222099999999998 18.0891 22.3551 8 h after dark 24.84735 22.5199 27.1748 12 h after dark 25.5396 23.7544 27.3248