720  
CDUS46 KMTR 120830  
CLIHWD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1230 AM PST TUE DEC 12 2023  
   
...............................  
 
   
..THE HAYWARD AIRPORT CLIMATE SUMMARY FOR DECEMBER 11 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 61 2:53 PM 67 2017 60 1 53  
MINIMUM 40 4:55 AM 35 2013 43 -3 46  
AVERAGE 51 51 0 50  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.43  
MONTH TO DATE 0.30 3.16  
SINCE OCT 1 1.44 5.41  
SINCE JAN 1 19.76 7.90  
 
DEGREE DAYS  
HEATING  
YESTERDAY 14 15  
MONTH TO DATE 129 128  
SINCE DEC 1 129 128  
SINCE JUL 1 395 635  
 
COOLING  
YESTERDAY 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 N (360)  
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 2.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 7:00 PM  
LOWEST 42 3:00 PM  
AVERAGE 66  
   
......................................................  
 
THE HAYWARD AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 66 2018  
MINIMUM TEMPERATURE (F) 43 34 2013  
 
SUNRISE AND SUNSET  
DECEMBER 12 2023......SUNRISE 7:14 AM PST SUNSET 4:50 PM PST  
DECEMBER 13 2023......SUNRISE 7:15 AM PST SUNSET 4:50 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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