The Baltimore Sun

This week Baltimore's average daily highs and lows tick upward noticeably for the first time since the high hit bottom (41 degrees) on Jan. 5, and the low sank to 23 on Jan. 11. On Tuesday, the average low rises to 24 degrees, and the high bumps to 42 on Friday. The coldest days occur after the shortest (Dec. 21) because it takes several weeks before the increasing solar input exceeds heat being lost to space.

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