condition mean min max 4 h after light 19.1 19.1 19.1 8 h after light 15.149999999999999 4.4 25.9 12 h after light 18.75 18.4 19.1 4 h after dark 12.6 11.0 14.2 8 h after dark 12.7 5.2 20.2 12 h after dark 16.15 12.4 19.9