Share 'When should I start applying?'

Hi everyone, I'm a college student and would like to take a year off next year and work a seasonal job, preferably somewhere out west. I worked at a lodge last summer, but I didn't apply for any jobs until May and was lucky to get that one. Anyway, next summer I will be able to start the beginning of June and work until the end of the season, or as long as needed. My question is, when should I...