Winter starts December 21... I expect it to be in stores before that day.
Unless your in Ireland and winter starts much sooner
Our seasons are organised around our particular four quarter days (each one beginning at sunset on the eve of the quarter day and ending with that day's sunset):
31st October to 1st November ... Samhain (start of the New Year and Winter)
31st January to 1st February .... Imbolc (start of Spring)
30th April to 1st May .... Bealtinne (start of Summer)
31st July to 1st August ... Lughnasa (Start of Autumn)