condition mean min max 4 h after light 6.4 6.4 6.4 8 h after light 16.95 2.0 31.9 12 h after light 3.6 1.7 5.5 4 h after dark 14.2 4.1 24.3 8 h after dark 3.4000000000000004 2.6 4.2 12 h after dark 22.7 21.0 24.4