condition mean min max 4 h after light 19.725512 15.804514 23.64651 8 h after light 19.7681045 17.745523 21.790686 12 h after light 24.8396155 24.183885 25.495346 4 h after dark 20.461475 19.507062 21.415888 8 h after dark 26.0754245 24.796405 27.354444 12 h after dark 25.463694 25.463694 25.463694