AFOS product CLISFO
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CDUS46 KMTR 210852
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
152 AM PDT MON SEP 21 2015


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 20 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         93R   310 PM  93    1990  74     19       77       
  MINIMUM         61    543 AM  48    1965  56      5       64       
                                      1954                          
                                      1947                          
  AVERAGE         77                        65     12       71      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.08 2005   0.00   0.00     0.00    
  MONTH TO DATE    T                         0.08  -0.08     0.01    
  SINCE OCT 1     16.59                     20.56  -3.97     8.58    
  SINCE JAN 1      3.63                     13.20  -9.57     7.32    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0                                 
  MONTH TO DATE    0.0                                               
  SINCE SEP 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         2     -2        0       
  MONTH TO DATE    9                        40    -31        3       
  SINCE SEP 1      9                        40    -31        3       
  SINCE JUL 1     14                       153   -139       23       
                                                                     
 COOLING                                                             
  YESTERDAY       12                         1     11        6       
  MONTH TO DATE   72                        35     37       70       
  SINCE SEP 1     72                        35     37       70       
  SINCE JAN 1    266                       132    134      323       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION  NW (310)      
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     W (280)      
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     W (280)      
  AVERAGE WIND SPEED     5.0                                         

                                                                     
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    68           900 AM                                     
 LOWEST     27           400 PM                                     
 AVERAGE    48                                                       

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

                                                                     
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   74        95      2003                    
 MINIMUM TEMPERATURE (F)   56        45      1955                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 21 2015.....SUNRISE   656 AM PDT   SUNSET   708 PM PDT   
SEPTEMBER 22 2015.....SUNRISE   657 AM PDT   SUNSET   707 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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