condition mean min max 4 h after light 24.1 24.1 24.1 8 h after light 19.1 15.7 22.5 12 h after light 25.8 22.3 29.3 4 h after dark 48.2 39.2 57.2 8 h after dark 73.9 50.5 97.3 12 h after dark 39.75 24.2 55.3