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 02:56 AM PDT was:
  The skies were mostly cloudy.
  Temperature: 55F ( 13C)  Dewpoint:  52F ( 11C)  Relative Humidity:  88%
  Winds from the W  (270 degs) at 17 mph.
  Pressure: 1019.2 millibars.  Altimeter:30.10 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at SAN FRANCISCO, CA (KSFO) at 03:26 AM PDT was:
  The skies were cloudy.
  Temperature: 55F ( 13C)  Dewpoint:  52F ( 11C)  Relative Humidity:  88%
  Winds from the W  (270 degs) at 15 mph.
  Altimeter:30.10 inches of mercury.
  The prevailing visibility was 10 miles.