condition mean min max 2 h after light 52.8782 50.5536 55.7069 6 h after light 53.4783 48.1033 58.1447 10 h after light 54.0978 53.3019 55.3825 2 h after dark 66.07126666666667 64.7187 67.8229 6 h after dark 72.51453333333333 70.9404 73.8664 10 h after dark 77.40623333333333 72.8825 80.82