condition mean min max 4 h after light 53.1 53.1 53.1 8 h after light 66.65 58.6 74.7 12 h after light 52.85 45.0 60.7 4 h after dark 44.8 31.1 58.5 8 h after dark 44.75 36.6 52.9 12 h after dark 41.8 40.1 43.5