The impact of the Chesapeake Bay on local weather has never been more apparent than it is this afternoon. As temperatures rise into the 60s and 70s across the region, the mercury is stuck at 45 degrees in Annapolis, as of the 3 p.m. reading.

The Annapolis reading comes from the U.S. Naval Academy, which is right on the Severn River where it enters the bay. Water temperature at the Thomas Point Light is 38 degrees.

Glenn L. Martin Airport, on Middle River, is reporting a chilly 54 degrees, even as BWI chimes in at 64 degrees. The Sun's station at Calvert and Centre streets read 65 at 3 p.m..

Here is a list of 3 p.m. readings from across the region:

Washington National: 64 degrees

Dulles International:  67 degrees

BWI:  64 degrees

Charolottesville, Va.:  70 degrees

Fredericksburg, Va.:  66 degrees

Winchester, Va.:  73 degrees

Annapolis:  45 degrees

Hagerstown:  71 degrees

Martin Airport:  54 degrees

Martinsburg, W. Va.:  71 degrees.

Baltimore Sun:  65 degrees