condition mean min max 4 h after light 5.1 5.1 5.1 8 h after light 24.25 2.3 46.2 12 h after light 14.8 5.5 24.1 4 h after dark 29.2 20.0 38.4 8 h after dark 30.65 2.3 59.0 12 h after dark 18.95 17.0 20.9