401  
CDUS46 KMTR 210826  
CLIHWD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
126 AM PDT MON AUG 21 2017  
 
   
...............................
 
 
   
..THE HAYWARD AIRPORT CLIMATE SUMMARY FOR AUGUST 20 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 77 113 PM 79 2003 76 1 72  
MINIMUM 63 1159 PM 55 2012 58 5 58  
AVERAGE 70 67 3 65  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00  
MONTH TO DATE T 0.00  
SINCE OCT 1 19.57 13.33  
SINCE JAN 1 13.69 9.11  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0  
MONTH TO DATE 5 5  
SINCE JUN 1 41 45  
SINCE JUL 1 10 20  
 
COOLING  
YESTERDAY 5 0  
MONTH TO DATE 65 31  
SINCE JUN 1 254 162  
SINCE JAN 1 311 215    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION NW (300)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 8.3  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 400 AM  
LOWEST 49 1200 PM  
AVERAGE 64  
   
......................................................
 
 
 
THE HAYWARD AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 83 2009  
MINIMUM TEMPERATURE (F) 58 55 2012  
2006  
 
 
SUNRISE AND SUNSET  
AUGUST 21 2017........SUNRISE 630 AM PDT SUNSET 753 PM PDT  
AUGUST 22 2017........SUNRISE 630 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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