condition mean min max 4 h after light 15.1 15.1 15.1 8 h after light 2.55 2.1 3.0 12 h after light 13.65 1.5 25.8 4 h after dark 11.6 8.6 14.6 8 h after dark 21.450000000000003 9.2 33.7 12 h after dark 21.4 17.8 25.0