condition mean min max 4 h after light 8.3 8.3 8.3 8 h after light 13.6 3.9 23.3 12 h after light 2.9 2.5 3.3 4 h after dark 4.15 2.7 5.6 8 h after dark 26.0 22.1 29.9 12 h after dark 4.550000000000001 4.4 4.7