Yes, that was steam rising from Boston Harbor

A photo from the New England Aquarium shows just how cold it is outside.

On one of the coldest mornings in Boston’s history, even the harbor is looking warmer than the chilly air.

A Sunday morning blog post from the New England Aquarium shows steam rising off Boston Harbor and into the air, dropped to negative 9 degrees — not to mention wind chills which made it feel like temperatures had dropped between negative 30 and 40 degrees.

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