Autumn and Winter Months: A Quick Guide

Using the three-month calendar grouping, autumn runs from September 1 through November 30, and winter runs from December 1 through the end of February. That makes November the last month of fall and December the first month of winter, even though cold days can arrive earlier or linger well into spring.

The astronomical seasons begin at the equinoxes and solstices, so autumn usually starts around September 22 or 23 and winter around December 21 or 22 in the Northern Hemisphere. Those dates explain why someone might call early December “fall” or late March “winter,” while still using September through November and December through February for the simpler three-month answer.

Our Autumn & Winter Sports-Style Pet Baseball Jacket is a seasonal option to consider as you plan for changing weather, but a season name alone cannot tell you whether a jacket suits a particular outing. Before you head out, consider the actual temperature, wind, precipitation, your pet’s activity level, and how comfortable your pet seems; adjust your plans if your pet appears too hot or too cold.

Check the product’s listed specifications when evaluating what does the season mean for your pet’s jacket.

For any pet jacket, measure your pet’s chest and back rather than choosing solely by the month or by your pet’s breed, then make sure the jacket allows a natural stride without rubbing at the shoulders or restricting breathing. After an outing, remove the jacket if it is damp, let it dry as appropriate, and follow its care instructions before storing it for the next cool-weather day; you can find more guidance in our autumn and winter pet baseball jacket fit tips.