AFOS product CLISFO
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CDUS46 KMTR 250827
CLISFO

CLIMATE REPORT
NATIONAL WEATHER SERVICE IN SAN FRANCISCO                            
126 AM PDT TUE SEP 25 2007


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 24 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         77    136 PM  93    1978  73      4       76       
  MINIMUM         52    618 AM  48    1955  55     -3       53       
                                      1945                          
  AVERAGE         65                        64      1       65      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.39 1904   0.01  -0.01     0.00    
  MONTH TO DATE    0.15                      0.14   0.01     0.00    
  SINCE JUL 1      0.16                      0.24  -0.08     0.00    
  SINCE JAN 1      6.45                     13.63  -7.18    15.26    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE SEP 1      0.0                                               
  SINCE JUL 1      0.0                                               
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         2     -2        0       
  MONTH TO DATE   31                        48    -17       61       
  SINCE SEP 1     31                        48    -17       61       
  SINCE JUL 1    115                       181    -66      173       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         1     -1        0       
  MONTH TO DATE   28                        32     -4        9       
  SINCE SEP 1     28                        32     -4        9       
  SINCE JAN 1    113                       116     -3      144       
..................................................................


 WIND (MPH)                                                           
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION     W (280)      
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     W (280)      
  AVERAGE WIND SPEED     7.0                                         

                                                                      
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    77           100 AM                                     
 LOWEST     36           100 PM                                     
 AVERAGE    57                                                       

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

                                                                      
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   72        91      1970                    
                                             1960                    
 MINIMUM TEMPERATURE (F)   55        47      1972                    
                                             1948                    

                                                                      
SUNRISE AND SUNSET                                                   
SEPTEMBER 25 2007.....SUNRISE   700 AM PDT   SUNSET   702 PM PDT   
SEPTEMBER 26 2007.....SUNRISE   701 AM PDT   SUNSET   701 PM PDT   

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

 


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