AFOS product CLIHWD
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CDUS46 KMTR 170827
CLIHWD


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
1227 AM PST SAT DEC 17 2016


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

...THE HAYWARD AIRPORT CLIMATE SUMMARY FOR DECEMBER 16 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2016


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         55    231 PM  70    1998  57     -2       58       
  MINIMUM         42   1158 PM  35    2011  42      0       36       
  AVERAGE         49                        50     -1       47      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00                                      0.00    
  MONTH TO DATE    1.94                                      1.31    
  SINCE OCT 1      5.32                                      2.94    
  SINCE JAN 1     14.43                                      6.35    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       16                                        18       
  MONTH TO DATE  187                                       206       
  SINCE DEC 1    187                                       206       
  SINCE JUL 1    490                                       572       
                                                                     
 COOLING                                                             
  YESTERDAY        0                                         0       
  MONTH TO DATE    0                                         0       
  SINCE DEC 1      0                                         0       
  SINCE JAN 1    357                                       498       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED  13   RESULTANT WIND DIRECTION  NW (300)      
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION     W (290)      
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION     W (290)      
  AVERAGE WIND SPEED    13.3                                         

                                                                     
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    63           100 AM                                     
 LOWEST     50           900 AM                                     
 AVERAGE    57                                                       

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

                                                                     
THE HAYWARD AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   57        66      1998                    
 MINIMUM TEMPERATURE (F)   42        34      2008                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 17 2016......SUNRISE   718 AM PST   SUNSET   452 PM PST   
DECEMBER 18 2016......SUNRISE   718 AM PST   SUNSET   452 PM PST   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




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