Weather Service Report


498 
CDUS46 KMTR 040826
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
126 AM PDT FRI SEP 4 2015


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 3 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   1148 AM  93    1961  74     -5       76       
  MINIMUM         59   1159 PM  50    1970  56      3       60       
                                      1947                          
                                      1945                          
  AVERAGE         64                        65     -1       68      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.00 2007   0.01  -0.01     0.00    
  MONTH TO DATE    0.00                      0.01  -0.01     0.00    
  SINCE OCT 1     16.59                     20.49  -3.90     8.57    
  SINCE JAN 1      3.63                     13.13  -9.50     7.31    
                                                                     
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        1                         2     -1        0       
  MONTH TO DATE    1                         6     -5        0       
  SINCE SEP 1      1                         6     -5        0       
  SINCE JUL 1      6                       119   -113       20       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         2     -2        3       
  MONTH TO DATE    6                         6      0       12       
  SINCE SEP 1      6                         6      0       12       
  SINCE JAN 1    200                       103     97      265       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  16   RESULTANT WIND DIRECTION   W (250)      
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION     W (260)      
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION     W (270)      
  AVERAGE WIND SPEED    16.0                                         

                                                                     
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    84           100 AM                                     
 LOWEST     56          1000 AM                                     
 AVERAGE    70                                                       

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

                                                                     
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   74        92      2008                    
                                             2004                    
                                             1961                    
 MINIMUM TEMPERATURE (F)   56        50      1989                    
                                             1947                    
                                             1910                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER  4 2015.....SUNRISE   642 AM PDT   SUNSET   734 PM PDT   
SEPTEMBER  5 2015.....SUNRISE   643 AM PDT   SUNSET   733 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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Western Regional Climate Center, wrcc@dri.edu