condition mean min max 4 h after light 110.5 110.5 110.5 8 h after light 174.1 149.5 198.7 12 h after light 254.75 229.7 279.8 4 h after dark 328.3 281.0 375.6 8 h after dark 240.7 196.1 285.3 12 h after dark 241.3 192.1 290.5