condition mean min max 4 h after light 13.299710999999999 11.533945 15.065477 8 h after light 15.3809065 15.354928 15.406885 12 h after light 16.5621965 15.75171 17.372683 4 h after dark 13.9103695 13.034059 14.78668 8 h after dark 16.3498295 13.702575 18.997084 12 h after dark 18.112676 18.112676 18.112676