Weather Service Report


797 
CDUS46 KMTR 300826
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
126 AM PDT THU JUL 30 2015


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JULY 29 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         81   1112 AM  91    1977  72      9       73       
  MINIMUM         57    546 AM  44    1951  56      1       60       
  AVERAGE         69                        64      5       67      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.00 2006   0.00   0.00     0.00    
  MONTH TO DATE    T                         0.00   0.00      T      
  SINCE OCT 1     16.59                     20.44  -3.85     8.57    
  SINCE JAN 1      3.63                     13.08  -9.45     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                         2     -2        0       
  MONTH TO DATE    5                        58    -53       19       
  SINCE JUN 1     80                       163    -83       68       
  SINCE JUL 1      5                        58    -53       19       
                                                                     
 COOLING                                                             
  YESTERDAY        4                         1      3        2       
  MONTH TO DATE   59                        29     30       83       
  SINCE JUN 1     76                        50     26      118       
  SINCE JAN 1     89                        69     20      181       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  11   RESULTANT WIND DIRECTION  NW (300)      
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION    NW (300)      
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION    NW (300)      
  AVERAGE WIND SPEED    12.0                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.2                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  HAZE                                                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           500 AM                                     
 LOWEST     45           200 PM                                     
 AVERAGE    69                                                       

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

                                                                     
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   72        97      1977                    
 MINIMUM TEMPERATURE (F)   56        45      1954                    

                                                                     
SUNRISE AND SUNSET                                                   
JULY 30 2015..........SUNRISE   612 AM PDT   SUNSET   820 PM PDT   
JULY 31 2015..........SUNRISE   612 AM PDT   SUNSET   819 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