000 
CDUS46 KMTR 210026
CLISFO

CLIMATE REPORT
NATIONAL WEATHER SERVICE IN SAN FRANCISCO                            
526 PM PDT MON AUG 20 2007


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 20 2007...
VALID TODAY AS OF 0500 PM LOCAL TIME.

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)                                                     
 TODAY                                                               
  MAXIMUM         74   1206 PM  84    1964  72      2       68       
                                      1916                          
  MINIMUM         60    605 AM  47    1955  56      4       55       
  AVERAGE         67                        64      3       62      
                                                                     
PRECIPITATION (IN)                                                   
  TODAY            0.00          0.04 1997   0.00   0.00     0.00    
  MONTH TO DATE    0.00                      0.00   0.00     0.00    
  SINCE JUL 1      0.01                      0.03  -0.02     0.00    
  SINCE JAN 1      6.30                     13.42  -7.12    15.26    
                                                                     
SNOWFALL (IN)                                                        
  TODAY            0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE JUN 1      0.0                                               
  SINCE JUL 1      0.0                                               
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  TODAY            0                         2     -2        3       
  MONTH TO DATE   45                        40      5       27       
  SINCE JUN 1    201                       237    -36      148       
  SINCE JUL 1     84                       117    -33       80       
                                                                     
 COOLING                                                             
  TODAY            2                         1      1        0       
  MONTH TO DATE    4                        15    -11       16       
  SINCE JUN 1     35                        59    -24      123       
  SINCE JAN 1     57                        73    -16      134       
..................................................................


 WIND (MPH)                                                           
  HIGHEST WIND SPEED    33   HIGHEST WIND DIRECTION     W (270)      
  HIGHEST GUST SPEED    37   HIGHEST GUST DIRECTION     W (270)      
  AVERAGE WIND SPEED    12.8                                         

                                                                      
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.3                                              

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

                                                                      
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    90          1200 AM                                     
 LOWEST     57          1200 PM                                     
 AVERAGE    74                                                       

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

                                                                      
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   72        85      1974                    
 MINIMUM TEMPERATURE (F)   56        42      1928                    

                                                                      
SUNRISE AND SUNSET                                                   
AUGUST 20 2007........SUNRISE   629 AM PDT   SUNSET   756 PM PDT   
AUGUST 21 2007........SUNRISE   630 AM PDT   SUNSET   754 PM PDT   

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

$$