condition mean min max 4 h after light 2.4 2.4 2.4 8 h after light 21.150000000000002 3.1 39.2 12 h after light 20.3 5.7 34.9 4 h after dark 15.5 12.8 18.2 8 h after dark 24.6 22.4 26.8 12 h after dark 2.6 1.2 4.0