AFOS product CLISFO
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CDUS46 KMTR 100836
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1235 AM PST SAT DEC 10 2016


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 9 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         63    215 PM  67    1950  57      6       65       
  MINIMUM         56    206 AM  24    1972  45     11       54       
  AVERAGE         60                        51      9       60      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.04          1.17 1954   0.12  -0.08      T      
  MONTH TO DATE    1.80                      1.02   0.78     0.21    
  SINCE OCT 1      6.12                      4.35   1.77     1.63    
  SINCE JAN 1     18.56                     17.64   0.92     5.28    
                                                                     
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        5                        14     -9        5       
  MONTH TO DATE  107                       120    -13      100       
  SINCE DEC 1    107                       120    -13      100       
  SINCE JUL 1    521                       684   -163      457       
                                                                     
 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   5   RESULTANT WIND DIRECTION   S (170)      
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     S (170)      
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     S (180)      
  AVERAGE WIND SPEED     6.7                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.9                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93          1200 AM                                     
 LOWEST     78           600 AM                                     
 AVERAGE    86                                                       

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

                                                                     
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   57        70      1958                    
 MINIMUM TEMPERATURE (F)   45        29      1972                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 10 2016......SUNRISE   714 AM PST   SUNSET   451 PM PST   
DECEMBER 11 2016......SUNRISE   715 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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