000 
CDUS46 KMTR 120828
CLISFO

CLIMATE REPORT
NATIONAL WEATHER SERVICE IN SAN FRANCISCO                            
1226 AM PST WED DEC 12 2007


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 11 2007...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1927 TO 2007


 WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         57    334 PM  74    1958  56      1       58       
  MINIMUM         42   1159 PM  26    1972  43     -1       44       
  AVERAGE         50                        50      0       51      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          3.16 1995   0.09  -0.09     0.01    
  MONTH TO DATE    0.55                      0.93  -0.38     1.17    
  SINCE JUL 1      3.26                      4.76  -1.50     3.14    
  SINCE JAN 1      9.55                     18.15  -8.60    18.40    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE DEC 1      0.0                                               
  SINCE JUL 1      0.0                                               
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       15                        15      0       14       
  MONTH TO DATE  144                       158    -14      139       
  SINCE DEC 1    144                       158    -14      139       
  SINCE JUL 1    704                       782    -78      750       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1    126                       142    -16      153       
..................................................................


 WIND (MPH)                                                           
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION    NE (40)       
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION    NE (40)       
  AVERAGE WIND SPEED    10.6                                         

                                                                      
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.2                                              

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

                                                                      
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    70          1100 PM                                     
 LOWEST     38          1200 PM                                     
 AVERAGE    54                                                       

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

                                                                      
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   56        75      1958                    
 MINIMUM TEMPERATURE (F)   43        29      1972                    

                                                                      
SUNRISE AND SUNSET                                                   
DECEMBER 12 2007......SUNRISE   715 AM PST   SUNSET   451 PM PST   
DECEMBER 13 2007......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.                                          

$$