Weather Service Report


599 
CDUS46 KMTR 010035
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
535 PM PDT THU JUL 31 2014


................................... 

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JULY 31 2014...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 TODAY                                                               
  MAXIMUM         72    243 PM  97    1993  72      0       70       
  MINIMUM         58    405 AM  49    1956  56      2       54       
  AVERAGE         65                        64      1       62      
                                                                     
PRECIPITATION (IN)                                                   
  TODAY            0.00          0.02 1949   0.00   0.00     0.00    
  MONTH TO DATE    T                         T      0.00      T      
  SINCE JUL 1      T                         T      0.00      T      
  SINCE JAN 1      7.31                     13.08  -5.77     1.89    
                                                                     
SNOWFALL (IN)                                                        
  TODAY            0.0           0.0                                 
  MONTH TO DATE    0.0                                               
  SINCE JUN 1      0.0                                               
  SINCE JUL 1      0.0                                               
  SNOW DEPTH      MM                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  TODAY            0                         2     -2        3       
  MONTH TO DATE   19                        62    -43       78       
  SINCE JUN 1     68                       170   -102      166       
  SINCE JUL 1     19                        65    -46       78       
                                                                     
 COOLING                                                             
  TODAY            0                         1     -1        0       
  MONTH TO DATE   83                        24     59       18       
  SINCE JUN 1    118                        45     73       45       
  SINCE JAN 1    181                        64    117       72       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  11   RESULTANT WIND DIRECTION  NW (300)      
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION    NW (300)      
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION    NW (300)      
  AVERAGE WIND SPEED    11.6                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.5                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED TODAY.                            
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           100 AM                                     
 LOWEST     61           200 PM                                     
 AVERAGE    81                                                       

..........................................................

                                                                     
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   72       100      1993                    
 MINIMUM TEMPERATURE (F)   56        48      1951                    

                                                                     
SUNRISE AND SUNSET                                                   
JULY 31 2014..........SUNRISE   613 AM PDT   SUNSET   819 PM PDT   
AUGUST  1 2014........SUNRISE   613 AM PDT   SUNSET   818 PM PDT   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




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Western Regional Climate Center, wrcc@dri.edu