AFOS product CLISFO
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CDUS46 KMTR 170828
CLISFO

CLIMATE REPORT
NATIONAL WEATHER SERVICE IN SAN FRANCISCO                            
126 AM PDT FRI AUG 17 2007


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 16 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         70    322 PM  86    1960  72     -2       67       
  MINIMUM         58   1159 PM  48    1955  56      2       55       
                                      1952                          
  AVERAGE         64                        64      0       61      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.01 1941   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)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE JUN 1      0.0                                               
  SINCE JUL 1      0.0                                               
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        1                         2     -1        4       
  MONTH TO DATE   43                        32     11       13       
  SINCE JUN 1    199                       229    -30      134       
  SINCE JUL 1     82                       109    -27       66       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         1     -1        0       
  MONTH TO DATE    0                        11    -11       16       
  SINCE JUN 1     31                        55    -24      123       
  SINCE JAN 1     53                        69    -16      134       
..................................................................


 WIND (MPH)                                                           
  HIGHEST WIND SPEED    38   HIGHEST WIND DIRECTION     W (270)      
  HIGHEST GUST SPEED    48   HIGHEST GUST DIRECTION     W (270)      
  AVERAGE WIND SPEED    22.7                                         

                                                                      
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.3                                              

                                                                      
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                

                                                                      
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           600 AM                                     
 LOWEST     53           100 PM                                     
 AVERAGE    73                                                       

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

                                                                      
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   72        85      1939                    
 MINIMUM TEMPERATURE (F)   56        44      1935                    

                                                                      
SUNRISE AND SUNSET                                                   
AUGUST 17 2007........SUNRISE   627 AM PDT   SUNSET   800 PM PDT   
AUGUST 18 2007........SUNRISE   628 AM PDT   SUNSET   758 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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