AFOS product CLISFO
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CDUS46 KMTR 050827
CLISFO

CLIMATE REPORT
NATIONAL WEATHER SERVICE IN SAN FRANCISCO                            
126 AM PDT WED SEP 5 2007


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 4 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         69    331 PM  92    2004  73     -4       65       
                                      1961                          
  MINIMUM         58   1159 PM  50    1989  56      2       54       
                                      1947                          
                                      1910                          
  AVERAGE         64                        64      0       60      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.20 1876   0.00   0.00     0.00    
  MONTH TO DATE    0.00                      0.00   0.00     0.00    
  SINCE JUL 1      0.01                      0.10  -0.09     0.00    
  SINCE JAN 1      6.30                     13.49  -7.19    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        1                         2     -1        5       
  MONTH TO DATE    1                         8     -7       17       
  SINCE SEP 1      1                         8     -7       17       
  SINCE JUL 1     85                       141    -56      129       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         1     -1        0       
  MONTH TO DATE   10                         4      6        0       
  SINCE SEP 1     10                         4      6        0       
  SINCE JAN 1     95                        88      7      135       
..................................................................


 WIND (MPH)                                                           
  HIGHEST WIND SPEED    30   HIGHEST WIND DIRECTION     W (260)      
  HIGHEST GUST SPEED    38   HIGHEST GUST DIRECTION     W (260)      
  AVERAGE WIND SPEED    14.8                                         

                                                                      
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.6                                              

                                                                      
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                
  HAZE                                                               

                                                                      
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           700 AM                                     
 LOWEST     63          1100 AM                                     
 AVERAGE    78                                                       

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

                                                                      
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   73        94      2004                    
 MINIMUM TEMPERATURE (F)   56        45      1954                    

                                                                      
SUNRISE AND SUNSET                                                   
SEPTEMBER  5 2007.....SUNRISE   643 AM PDT   SUNSET   733 PM PDT   
SEPTEMBER  6 2007.....SUNRISE   644 AM PDT   SUNSET   731 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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