condition mean min max 3 h after light 21.7972 21.1849 22.3653 6 h after light 20.5956 18.0462 22.2086 9 h after light 26.1074 23.9973 29.5716 12 h after light 36.8327 31.9768 42.4911 3 h after dark 50.643566666666665 45.2876 58.5227 6 h after dark 67.6778 61.2775 71.9824 9 h after dark 58.899566666666665 55.6188 60.6256 12 h after dark 42.2903 41.206 43.3746