Well, it's Hurricane Season here in the Gulf South. But that's not the kind of seasons I'm talking about now.
Your job is to take a month (keyword) day (number) and a hemisphere (
:south) and determine which season it is (return a keyword), according to this handy table.
Start End North South March 1 May 31 Spring Autumn June 1 August 31 Summer Winter September 1 November 30 Autumn Spring December 1 February 29 Winter Summer
(which-season :north :march 5) ;=> :spring (which-season :south :december 25) ;=> :summer
Please submit your solutions as comments to this gist. Discussion is welcome.