condition mean min max 0 h after light 52.84785 49.7002 55.9955 4 h after light 53.8016 50.0833 57.5199 8 h after light 29.91 27.6995 32.1205 4 h after dark 35.58485 35.0211 36.1486 8 h after dark 34.63495 34.5999 34.67 12 h after dark 49.2341 48.3767 50.0915