AFOS product CLISFO
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CDUS46 KMTR 120845
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
145 AM PDT MON MAY 12 2014


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 11 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         75    233 PM  85    1959  67      8       69       
  MINIMUM         51    213 AM  42    1982  51      0       51       
                                      1953                          
  AVERAGE         63                        59      4       60      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.11 1958   0.02  -0.02     0.00    
  MONTH TO DATE    T                         0.22  -0.22      T      
  SINCE JUL 1      8.80                     20.29 -11.49    12.83    
  SINCE JAN 1      7.31                     12.72  -5.41     1.83    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0                                 
  MONTH TO DATE    0.0                                               
  SINCE MAR 1      0.0                                               
  SINCE JUL 1      0.0                                               
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        2                         6     -4        5       
  MONTH TO DATE   40                        72    -32       35       
  SINCE MAR 1    359                       634   -275      542       
  SINCE JUL 1   1904                      2440   -536     2426       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    9                         0      9       20       
  SINCE MAR 1     30                         6     24       24       
  SINCE JAN 1     30                         6     24       24       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  14   RESULTANT WIND DIRECTION  NW (300)      
  HIGHEST WIND SPEED    35   HIGHEST WIND DIRECTION     W (280)      
  HIGHEST GUST SPEED    40   HIGHEST GUST DIRECTION     W (270)      
  AVERAGE WIND SPEED    15.5                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.2                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    77          1100 PM                                     
 LOWEST     25           200 PM                                     
 AVERAGE    51                                                       

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

                                                                     
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   67        96      1976                    
 MINIMUM TEMPERATURE (F)   51        42      1953                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY 12 2014...........SUNRISE   603 AM PDT   SUNSET   810 PM PDT   
MAY 13 2014...........SUNRISE   602 AM PDT   SUNSET   811 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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