condition mean min max 4 h after light 23.3925 22.9263 23.8587 8 h after light 19.723399999999998 19.1669 20.2799 12 h after light 20.384050000000002 18.8992 21.8689 4 h after dark 28.7793 25.2668 32.2918 8 h after dark 31.9653 31.2036 32.727 12 h after dark 34.1965 33.5061 34.8869