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361 
CDUS46 KMTR 070027
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
427 PM PST WED DEC 6 2017


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 6 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 TODAY                                                               
  MAXIMUM         62    340 PM  67    2014  58      4       56       
                                      1979                          
  MINIMUM         42    425 AM  37    2013  46     -4       43       
                                      1972                          
                                      1967                          
  AVERAGE         52                        52      0       50      
                                                                     
PRECIPITATION (IN)                                                   
  TODAY            0.00          1.41 1950   0.11  -0.11     0.00    
  MONTH TO DATE    0.03                      0.65  -0.62     0.00    
  SINCE OCT 1      3.01                      3.98  -0.97     4.32    
  SINCE JAN 1     25.20                     17.27   7.93    16.76    
                                                                     
SNOWFALL (IN)                                                        
  TODAY            0.0           0.0                                 
  MONTH TO DATE    0.0                                               
  SINCE DEC 1      0.0                                               
  SINCE JUL 1      0.0                                               
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  TODAY           13                        13      0       15       
  MONTH TO DATE   65                        78    -13       74       
  SINCE DEC 1     65                        78    -13       74       
  SINCE JUL 1    404                       642   -238      488       
                                                                     
 COOLING                                                             
  TODAY            0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1    346                       164    182      142       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION   E (110)      
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     E (80)       
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION     E (70)       
  AVERAGE WIND SPEED     6.2                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.0                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED TODAY.                            
  HAZE                                                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    76           400 AM                                     
 LOWEST     32           100 PM                                     
 AVERAGE    54                                                       

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

                                                                     
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   58        69      1979                    
 MINIMUM TEMPERATURE (F)   45        33      1960                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER  6 2017......SUNRISE   711 AM PST   SUNSET   451 PM PST   
DECEMBER  7 2017......SUNRISE   711 AM PST   SUNSET   451 PM PST   

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




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