AFOS product CLISFO
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CDUS46 KMTR 220826
CLISFO

CLIMATE REPORT
NATIONAL WEATHER SERVICE IN SAN FRANCISCO                            
125 AM PDT SAT SEP 22 2007


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 21 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         72    124 PM  99    1928  73     -1       73       
  MINIMUM         58    818 PM  45    1955  55      3       54       
  AVERAGE         65                        64      1       64      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.02          0.47 1916   0.01   0.01     0.00    
  MONTH TO DATE    0.02                      0.11  -0.09     0.00    
  SINCE JUL 1      0.03                      0.21  -0.18     0.00    
  SINCE JAN 1      6.32                     13.60  -7.28    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        1       
  MONTH TO DATE   22                        42    -20       61       
  SINCE SEP 1     22                        42    -20       61       
  SINCE JUL 1    106                       175    -69      173       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         1     -1        0       
  MONTH TO DATE   28                        29     -1        9       
  SINCE SEP 1     28                        29     -1        9       
  SINCE JAN 1    113                       113      0      144       
..................................................................


 WIND (MPH)                                                           
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     W (290)      
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     W (290)      
  AVERAGE WIND SPEED     8.4                                         

                                                                      
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.6                                              

                                                                      
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  THUNDERSTORM                                                       
  RAIN                                                               
  LIGHT RAIN                                                         

                                                                      
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    78           500 PM                                     
 LOWEST     47           100 PM                                     
 AVERAGE    63                                                       

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

                                                                      
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   73        97      1939                    
 MINIMUM TEMPERATURE (F)   55        48      1981                    
                                             1910                    

                                                                      
SUNRISE AND SUNSET                                                   
SEPTEMBER 22 2007.....SUNRISE   657 AM PDT   SUNSET   707 PM PDT   
SEPTEMBER 23 2007.....SUNRISE   658 AM PDT   SUNSET   705 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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