AFOS product CLISFO
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CDUS46 KMTR 190843
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
143 AM PDT WED AUG 19 2015


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 18 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         76    302 PM  88    1934  73      3       70       
  MINIMUM         59    550 AM  48    1957  56      3       60       
  AVERAGE         68                        65      3       65      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.35 1976   0.00   0.00     0.00    
  MONTH TO DATE    T                         0.02  -0.02      T      
  SINCE OCT 1     16.59                     20.46  -3.87     8.57    
  SINCE JAN 1      3.63                     13.10  -9.47     7.31    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0                                 
  MONTH TO DATE    0.0                                               
  SINCE JUN 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         1     -1        0       
  MONTH TO DATE    0                        29    -29        1       
  SINCE JUN 1     80                       199   -119       69       
  SINCE JUL 1      5                        94    -89       20       
                                                                     
 COOLING                                                             
  YESTERDAY        3                         1      2        0       
  MONTH TO DATE   58                        18     40       36       
  SINCE JUN 1    138                        63     75      154       
  SINCE JAN 1    151                        82     69      217       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   6   RESULTANT WIND DIRECTION   W (290)      
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     W (290)      
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION     W (290)      
  AVERAGE WIND SPEED     8.4                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.5                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  HAZE                                                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    87           100 AM                                     
 LOWEST     54           200 PM                                     
 AVERAGE    71                                                       

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

                                                                     
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   73        89      1964                    
 MINIMUM TEMPERATURE (F)   56        49      1955                    
                                             1894                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 19 2015........SUNRISE   629 AM PDT   SUNSET   757 PM PDT   
AUGUST 20 2015........SUNRISE   629 AM PDT   SUNSET   756 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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