Weather Service Report


829 
CDUS46 KMTR 200832
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
131 AM PDT SUN APR 20 2014


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR APRIL 19 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         63    357 PM  86    2009  65     -2       72       
  MINIMUM         51   1249 AM  40    1971  49      2       49       
                                      1967                          
  AVERAGE         57                        57      0       61      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T             1.25 1988   0.04  -0.04     0.00    
  MONTH TO DATE    1.20                      0.94   0.26     0.47    
  SINCE JUL 1      8.39                     19.72 -11.33    12.83    
  SINCE JAN 1      6.90                     12.15  -5.25     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        8                         8      0        4       
  MONTH TO DATE  110                       165    -55      143       
  SINCE MAR 1    286                       479   -193      458       
  SINCE JUL 1   1831                      2285   -454     2342       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    6                         0      6        1       
  SINCE MAR 1      6                         1      5        1       
  SINCE JAN 1      6                         1      5        1       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  13   RESULTANT WIND DIRECTION   W (270)      
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION     W (260)      
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     W (250)      
  AVERAGE WIND SPEED    12.9                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.5                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  FOG                                                                

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

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

                                                                     
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   65        91      2009                    
 MINIMUM TEMPERATURE (F)   49        38      1967                    

                                                                     
SUNRISE AND SUNSET                                                   
APRIL 20 2014.........SUNRISE   628 AM PDT   SUNSET   750 PM PDT   
APRIL 21 2014.........SUNRISE   626 AM PDT   SUNSET   751 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