condition mean min max 4 h after light 19.7 19.7 19.7 8 h after light 25.75 18.4 33.1 12 h after light 16.85 9.9 23.8 4 h after dark 13.3 10.7 15.9 8 h after dark 4.949999999999999 4.3 5.6 12 h after dark 18.049999999999997 9.7 26.4