Surface observations

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


The weather observed at SAN FRANCISCO, CA (KSFO) at 04:56 AM PDT was:
  The skies were mostly clear.
  Temperature: 52F ( 11C)  Dewpoint:  49F (  9C)  Relative Humidity:  89%
  Winds from the WNW(290 degs) at  8 mph.
  Pressure: 1012.9 millibars.  Altimeter:29.91 inches of mercury.
  The prevailing visibility was 10 miles.
  The maximum temperature in the past 6 hours was  54F.
  The minimum temperature in the past 6 hours was  52F.