Weather Service Report


255 
CDUS46 KMTR 280831
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
131 AM PDT THU MAY 28 2015


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 27 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         64    127 PM  97    1984  69     -5       68       
  MINIMUM         53   1150 PM  42    1954  53      0       54       
  AVERAGE         59                        60     -1       61      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.92 1990   0.01  -0.01     0.00    
  MONTH TO DATE    0.02                      0.43  -0.41      T      
  SINCE OCT 1     16.33                     20.29  -3.96     8.57    
  SINCE JAN 1      3.37                     12.93  -9.56     7.31    
                                                                     
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        6                         5      1        4       
  MONTH TO DATE  166                       161      5       68       
  SINCE MAR 1    497                       723   -226      403       
  SINCE JUL 1   1444                      2529  -1085     1948       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0       41       
  SINCE MAR 1     13                         6      7       62       
  SINCE JAN 1     13                         6      7       62       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  12   RESULTANT WIND DIRECTION   W (260)      
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION     W (260)      
  HIGHEST GUST SPEED    36   HIGHEST GUST DIRECTION     W (260)      
  AVERAGE WIND SPEED    12.8                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.8                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    89          1100 PM                                     
 LOWEST     56           100 PM                                     
 AVERAGE    73                                                       

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

                                                                     
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   69        92      1984                    
 MINIMUM TEMPERATURE (F)   53        45      1955                    
                                             1954                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY 28 2015...........SUNRISE   552 AM PDT   SUNSET   822 PM PDT   
MAY 29 2015...........SUNRISE   551 AM PDT   SUNSET   823 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