condition mean min max 4 h after light 47.705 41.4769 53.9331 8 h after light 46.00345 45.3814 46.6255 12 h after light 55.62865 55.2914 55.9659 4 h after dark 65.19526666666667 63.9728 67.5916 8 h after dark 66.38943333333333 60.89 69.7615 12 h after dark 54.5788 51.2194 57.6711