AFOS product CLISFO
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CDUS46 KMTR 210834
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
134 AM PDT FRI AUG 21 2015


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 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         69    305 PM  84    1964  73     -4       73       
  MINIMUM         61   1159 PM  47    1955  56      5       62       
  AVERAGE         65                        65      0       68      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.04 1997   0.00   0.00     0.00    
  MONTH TO DATE    T                         0.02  -0.02      T      
  SINCE OCT 1     16.59                     20.46  -3.87     8.57    
  SINCE JAN 1      3.63                     13.10  -9.47     7.31    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0                                 
  MONTH TO DATE    0.0                                               
  SINCE JUN 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         1     -1        0       
  MONTH TO DATE    0                        31    -31        1       
  SINCE JUN 1     80                       201   -121       69       
  SINCE JUL 1      5                        96    -91       20       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         1     -1        3       
  MONTH TO DATE   60                        20     40       42       
  SINCE JUN 1    140                        65     75      160       
  SINCE JAN 1    153                        84     69      223       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  11   RESULTANT WIND DIRECTION   W (270)      
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION     W (280)      
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     W (290)      
  AVERAGE WIND SPEED    11.8                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.6                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    84          1100 PM                                     
 LOWEST     57           200 PM                                     
 AVERAGE    71                                                       

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

                                                                     
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   73        85      1974                    
 MINIMUM TEMPERATURE (F)   56        42      1928                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 21 2015........SUNRISE   630 AM PDT   SUNSET   754 PM PDT   
AUGUST 22 2015........SUNRISE   631 AM PDT   SUNSET   753 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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