946  
CDUS46 KMTR 190831  
CLIHWD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1231 AM PST THU DEC 19 2024  
   
...............................
 
 
   
..THE HAYWARD AIRPORT CLIMATE SUMMARY FOR DECEMBER 18 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 61 2:52 PM 69 2023 59 2 69  
MINIMUM 42 7:41 AM 32 2016 43 -1 52  
AVERAGE 52 51 1 61  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.81  
MONTH TO DATE 2.69 1.41  
SINCE OCT 1 5.02 2.55  
SINCE JAN 1 22.02 20.87  
 
DEGREE DAYS  
HEATING  
YESTERDAY 13 4  
MONTH TO DATE 181 204  
SINCE DEC 1 181 204  
SINCE JUL 1 464 470  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 713 448    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NE (50)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 5.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 10:00 AM  
LOWEST 64 3:00 PM  
AVERAGE 82  
   
......................................................
 
 
THE HAYWARD AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 74 1999  
MINIMUM TEMPERATURE (F) 43 31 2006  
 
SUNRISE AND SUNSET  
DECEMBER 19 2024......SUNRISE 7:19 AM PST SUNSET 4:53 PM PST  
DECEMBER 20 2024......SUNRISE 7:20 AM PST SUNSET 4:53 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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