979  
CDUS46 KMTR 170034  
CLIHWD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
434 PM PST SAT DEC 16 2023  
   
...............................  
 
   
..THE HAYWARD AIRPORT CLIMATE SUMMARY FOR DECEMBER 16 2023  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 65 3:56 PM 70 1998 59 6 59  
MINIMUM 41 6:27 AM 35 2011 43 -2 37  
AVERAGE 53 51 2 48  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00  
MONTH TO DATE 0.30 3.20  
SINCE OCT 1 1.44 5.45  
SINCE JAN 1 19.76 7.94  
 
DEGREE DAYS  
HEATING  
TODAY 12 17  
MONTH TO DATE 190 221  
SINCE DEC 1 190 221  
SINCE JUL 1 456 728  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 448 430    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION SW (220)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 2.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 1:00 AM  
LOWEST 38 3:00 PM  
AVERAGE 61  
   
......................................................  
 
THE HAYWARD AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 68 2017  
MINIMUM TEMPERATURE (F) 43 34 2008  
2016  
 
SUNRISE AND SUNSET  
DECEMBER 16 2023......SUNRISE 7:17 AM PST SUNSET 4:51 PM PST  
DECEMBER 17 2023......SUNRISE 7:17 AM PST SUNSET 4:52 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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