AFOS product CLISFO
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CDUS46 KMTR 120828
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1227 AM PST FRI DEC 12 2014


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 11 2014...

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)                                                     
 YESTERDAY                                                           
  MAXIMUM         67   1216 AM  74    1958  57     10       57       
  MINIMUM         51   1108 PM  26    1972  45      6       38       
  AVERAGE         59                        51      8       48      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        3.43R         3.16 1995   0.12   3.31     0.00    
  MONTH TO DATE    7.24                      1.25   5.99     0.35    
  SINCE JUL 1      9.96                      4.79   5.17     1.49    
  SINCE JAN 1     17.27                     17.87  -0.60     3.38    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0                                 
  MONTH TO DATE    0.0                                               
  SINCE DEC 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        6                        14     -8       17       
  MONTH TO DATE   41                       148   -107      197       
  SINCE DEC 1     41                       148   -107      197       
  SINCE JUL 1    229                       712   -483      698       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1    497                       164    333      164       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  10   RESULTANT WIND DIRECTION   S (160)      
  HIGHEST WIND SPEED    37   HIGHEST WIND DIRECTION     S (180)      
  HIGHEST GUST SPEED    48   HIGHEST GUST DIRECTION     S (180)      
  AVERAGE WIND SPEED    11.7                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 1.0                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  HEAVY RAIN                                                         
  RAIN                                                               
  LIGHT RAIN                                                         
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100          1200 PM                                     
 LOWEST     73           300 AM                                     
 AVERAGE    87                                                       

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

                                                                     
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   57        75      1958                    
 MINIMUM TEMPERATURE (F)   45        29      1972                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 12 2014......SUNRISE   715 AM PST   SUNSET   451 PM PST   
DECEMBER 13 2014......SUNRISE   716 AM PST   SUNSET   452 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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