condition mean min max 4 h after light 18.0 18.0 18.0 8 h after light 70.5 15.8 125.2 12 h after light 59.55 17.0 102.1 4 h after dark 44.8 27.5 62.1 8 h after dark 51.45 33.4 69.5 12 h after dark 9.600000000000001 8.8 10.4