AFOS product CLISFO
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CDUS46 KMTR 290826
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1226 AM PST THU DEC 29 2016


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 28 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2016


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         58    152 PM  71    1967  56      2       48       
  MINIMUM         40    550 AM  32    1966  44     -4       41       
  AVERAGE         49                        50     -1       45      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.46 1991   0.14  -0.14     0.11    
  MONTH TO DATE    4.63                      3.61   1.02     3.36    
  SINCE OCT 1      8.95                      6.94   2.01     4.78    
  SINCE JAN 1     21.39                     20.23   1.16     8.43    
                                                                     
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       16                        15      1       20       
  MONTH TO DATE  391                       400     -9      383       
  SINCE DEC 1    391                       400     -9      383       
  SINCE JUL 1    805                       964   -159      740       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1    142                       164    -22      327       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   2   RESULTANT WIND DIRECTION   E (90)       
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     N (10)       
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION     N (10)       
  AVERAGE WIND SPEED     4.1                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.1                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    86           800 AM                                     
 LOWEST     40           100 PM                                     
 AVERAGE    63                                                       

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

                                                                     
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   56        68      2013                    
 MINIMUM TEMPERATURE (F)   44        33      1988                    
                                             1962                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 29 2016......SUNRISE   724 AM PST   SUNSET   500 PM PST   
DECEMBER 30 2016......SUNRISE   724 AM PST   SUNSET   501 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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