condition mean min max 4 h after light 6.2 6.2 6.2 8 h after light 19.3 18.1 20.5 12 h after light 19.35 7.6 31.1 4 h after dark 16.45 3.9 29.0 8 h after dark 33.65 28.8 38.5 12 h after dark 5.449999999999999 2.3 8.6