Doing my research for the seasons I came across a very detailed website which chronicles all of the Pagan.Celtic festivals Here is an extract from it.
Samhain = Autumn
“Samhain marked the first day of winter, when the herders led the cattle and sheep down from their summer hillside pastures to the shelter of stable and byre. The hay that would feed them during the winter must be stored in sturdy thatched ricks, tied down securely against storms. Those destined for the table were slaughtered, after being ritually devoted to the gods in pagan times. All the harvest must be gathered in — barley, oats, wheat, turnips, and apples — for come November, the faeries would blast every growing plant with their breath, blighting any nuts and berries remaining on the hedgerows. Peat and wood for winter fires were stacked high by the hearth.”