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 10:52 PM EDT was:
  The skies were clear.
  Temperature: 81F ( 27C)  Dewpoint:  63F ( 17C)  Relative Humidity:  54%
  Winds from the SW (220 degs) at  6 mph.
  Pressure: 1012.5 millibars.  Altimeter:29.90 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at WASHINGTON DC, VA (KDCA) at 10:52 PM EDT was:
  The skies were clear.
  Temperature: 81F ( 27C)  Dewpoint:  63F ( 17C)  Relative Humidity:  54%
  Winds from the SW (220 degs) at  6 mph.
  Altimeter:29.90 inches of mercury.
  The prevailing visibility was 10 miles.