290  
CDUS46 KMTR 150826  
CLIHWD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1226 AM PST FRI DEC 15 2017  
 
   
...............................
 
 
   
..THE HAYWARD AIRPORT CLIMATE SUMMARY FOR DECEMBER 14 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1998 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 73R 338 PM 64 2016 57 16 64  
2014  
MINIMUM 39 649 AM 35 2007 43 -4 54  
AVERAGE 56 50 6 59  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T  
MONTH TO DATE T 1.08  
SINCE OCT 1 1.96 4.46  
SINCE JAN 1 15.65 13.57  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 6  
MONTH TO DATE 174 164  
SINCE DEC 1 174 164  
SINCE JUL 1 479 467  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 602 357    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION NE (40)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 3.5  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 70 700 AM  
LOWEST 15 300 PM  
AVERAGE 43  
   
......................................................
 
 
 
THE HAYWARD AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 68 1998  
MINIMUM TEMPERATURE (F) 42 35 2015  
2013  
 
 
SUNRISE AND SUNSET  
DECEMBER 15 2017......SUNRISE 716 AM PST SUNSET 451 PM PST  
DECEMBER 16 2017......SUNRISE 717 AM PST SUNSET 451 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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