Surface observations

Data from the National Weather Service, made available here by the UAlbany Department of Earth and Atmospheric Sciences

The weather observed at WASHINGTON DC, VA (KDCA) at 03:52 PM EST was:
  The skies were mostly clear.
  Temperature: 34F (  1C)  Dewpoint:  11F (-12C)  Relative Humidity:  38%
  Winds from the NW (330 degs) at 15 mph.
  Pressure: 1032.7 millibars.  Altimeter:30.50 inches of mercury.
  The prevailing visibility was 10 miles.