Cape Cod Climate

Cape Cod has a temperate marine climate. Although the Cape's weather is typically more moderate than inland locations, there have been occasions where Cape Cod has dealt with the brunt of extreme weather situations (such as the Blizzard of 2005 and Hurricane Bob). Because of the influence of the Atlantic Ocean, temperatures are typically a few degrees cooler in the summer and a few degrees warmer in the winter. A common misconception is that the climate is influenced largely by the warm Gulf Stream current, however that current turns eastward off the coast of Virginia and the waters off the Cape are more influenced by the cold Canadian Labrador Current. As a result, the ocean temperature rarely gets above 65 degrees F (18 degrees C), except along the shallow west coast of the Upper Cape.

The Cape's climate is also notorious for a delayed spring season, being surrounded by an ocean which is still cold from the winter; however, it is also known for an exceptionally mild fall season (Indian summer), thanks to the ocean remaining warm from the summer. The highest temperature ever recorded on Cape Cod was 104 degrees F (40 degrees C) in Provincetown, and the lowest temperature ever was -12 degrees F (-24 degrees C) in Barnstable.

Precipitation on Cape Cod and the islands of Martha's Vineyard and Nantucket is the lowest in the New England region, averaging slightly less than 40 inches (1,000 mm) a year (most parts of New England average 42-46 inches). This is due to storm systems which move across western areas, building up in mountainous regions, and dissipating before reaching the coast where the land has leveled out. The region does not experience a greater number of sunny days however, as the number of cloudy days is the same as inland locales, in addition to increased fog.

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Brian Serpone can be reached in the Harwich office of Today Real Estate at 508-568-8104.