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 01:52 AM EDT was:
  The skies were mostly clear.
  Temperature: 74F ( 23C)  Dewpoint:  59F ( 15C)  Relative Humidity:  60%
  Winds from the CLM(CLM degs) at  0 mph.
  Pressure: 1020.1 millibars.  Altimeter:30.13 inches of mercury.
  The prevailing visibility was 10 miles.
  The maximum temperature in the past 6 hours was  80F.
  The minimum temperature in the past 6 hours was  73F.