condition mean min max 4 h after light 20.400599999999997 18.8845 21.9167 8 h after light 20.585 20.5295 20.6405 12 h after light 21.457700000000003 19.2268 23.6886 4 h after dark 19.703000000000003 18.539 20.867 8 h after dark 21.90605 21.599 22.2131 12 h after dark 23.817999999999998 23.5932 24.0428