condition mean min max 4 h after light 17.8 17.8 17.8 8 h after light 56.099999999999994 55.8 56.4 12 h after light 17.6 7.4 27.8 4 h after dark 17.75 1.9 33.6 8 h after dark 12.0 6.6 17.4 12 h after dark 29.0 28.0 30.0