978  
CDUS46 KMTR 290834  
CLIHWD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1234 AM PST FRI DEC 29 2023  
   
...............................  
 
   
..THE HAYWARD AIRPORT CLIMATE SUMMARY FOR DECEMBER 28 2023  
 
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)  
YESTERDAY  
MAXIMUM 71R 2:28 PM 63 2005 59 12 58  
MINIMUM 53 4:44 AM 37 2015 42 11 41  
2016  
2019  
AVERAGE 62 51 11 50  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T  
MONTH TO DATE 2.45 4.94  
SINCE OCT 1 3.59 7.19  
SINCE JAN 1 21.91 9.68  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 15  
MONTH TO DATE 295 406  
SINCE DEC 1 295 406  
SINCE JUL 1 561 913  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 448 430    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION E (110)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 3.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 6:00 AM  
LOWEST 63 3:00 PM  
AVERAGE 78  
   
......................................................  
 
THE HAYWARD AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 70 2013  
MINIMUM TEMPERATURE (F) 42 34 2015  
 
SUNRISE AND SUNSET  
DECEMBER 29 2023......SUNRISE 7:23 AM PST SUNSET 4:58 PM PST  
DECEMBER 30 2023......SUNRISE 7:23 AM PST SUNSET 4:59 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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