condition mean min max 4 h after light 9.8 9.8 9.8 8 h after light 56.4 53.9 58.9 12 h after light 14.7 12.0 17.4 4 h after dark 12.45 3.5 21.4 8 h after dark 26.450000000000003 7.2 45.7 12 h after dark 67.6 55.7 79.5