condition mean min max 4 h after light 15.2 15.2 15.2 8 h after light 14.5 12.1 16.9 12 h after light 9.3 6.7 11.9 4 h after dark 9.649999999999999 7.1 12.2 8 h after dark 18.849999999999998 7.3 30.4 12 h after dark 12.600000000000001 8.1 17.1