Definitions for year-round
Random House Webster's College Dictionary
continuing, available, used, etc., throughout the year:
a year-round vacation spot.
(adv.)throughout the year.
Origin of year-round:
operating or continuing throughout the year
"a year-round resort"; "a year-round job"
Continuing throughout the year.
They live year-round in Florida.
Operating or continuing throughout the year.
This is a year-round business, so we can't afford holidays.