Still, in late spring and early summer, she was whispered as a possible vice presidential candidate -- and more recently as a contender for secretary of education in an Obama Cabinet -- but elected office would mark a major shift for Kennedy.

CNN: Senate seat for Caroline Kennedy would extend legacy

They follow a seasonal pattern reflecting the academic year, with lower rates in the autumn followed by a gradual rise in spring and early summer to a peak in late summer.

BBC: One in six young people not in education

First Read: A bipartisan group of senators formally unveiled an immigration reform framework that they hope the Senate could pass "in overwhelming and bipartisan fashion" by late spring or early summer.

MSN: Timing of Sen. Ensign resignation raises questions

Chairman and Conservative MP Bernard Jenkin called on the government to publish a Statement of National Strategy in late spring or early summer each year.

BBC: MPs say lack of government strategy causing 'mistakes'

Late spring and early summer, when the weather is at its most pleasant, is prime festival season in the city.

BBC: Celebrate New Orleans, from Mardi Gras to Jazz Fest