condition mean min max 4 h after light 10.1280275 9.150443 11.105612 8 h after light 11.450948 10.53389 12.368006 12 h after light 14.23983 12.461579 16.018081 4 h after dark 17.549248499999997 16.817905 18.280592 8 h after dark 16.5448885 10.906869 22.182908 12 h after dark 9.368883 9.368883 9.368883