The best US destination to travel to every month of the year

Shoulder season is the ideal time to travel: It's that perfect window between peak seasons that means cheaper airfare, cheaper hotels, shorter lines, less traffic, and fewer people.

We teamed up with Kayak to find the best destination in the US to visit each month of the year.

Using data from their Travel Hacker Guide, Kayak calculated the median monthly airfare for US destinations for travel between November 2013 and December 2014, and median hotel rates for travel between August 2014 and July 2015 with a minimum of three nights at four-star properties. Activities and weather were also taken into consideration.

Here is the ultimate guide to your next 12 months of vacations.