Surface observations

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


The weather observed at WASHINGTON DC, VA (KDCA) at 12:52 AM EST was:
  The skies were partly cloudy.
  Temperature: 27F ( -3C)  Dewpoint:   7F (-14C)  Relative Humidity:  42%
  Winds from the WNW(290 degs) at 10 mph.
  Pressure: 1015.2 millibars.  Altimeter:29.98 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at WASHINGTON DC, VA (KDCA) at 12:52 AM EST was:
  The skies were partly cloudy.
  Temperature: 27F ( -3C)  Dewpoint:   7F (-14C)  Relative Humidity:  42%
  Winds from the WNW(290 degs) at 10 mph.
  Altimeter:29.98 inches of mercury.
  The prevailing visibility was 10 miles.