condition mean min max 4 h after light 45.80845 43.5966 48.0203 8 h after light 33.460750000000004 32.7746 34.1469 12 h after light 30.316200000000002 29.8706 30.7618 4 h after dark 46.33895 45.8167 46.8612 8 h after dark 54.446200000000005 54.0762 54.8162 12 h after dark 60.16845 58.9132 61.4237