932  
CDUS46 KMTR 180042  
CLIHWD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
442 PM PST SUN DEC 17 2023  
   
...............................  
 
   
..THE HAYWARD AIRPORT CLIMATE SUMMARY FOR DECEMBER 17 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 61 3:25 PM 68 2017 59 2 54  
MINIMUM 47 2:18 AM 34 2008 43 4 36  
2016  
AVERAGE 54 51 3 45  
 
PRECIPITATION (IN)  
TODAY 0.26 0.00  
MONTH TO DATE 0.56 3.20  
SINCE OCT 1 1.70 5.45  
SINCE JAN 1 20.02 7.94  
 
DEGREE DAYS  
HEATING  
TODAY 11 20  
MONTH TO DATE 200 241  
SINCE DEC 1 200 241  
SINCE JUL 1 466 748  
 
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 E (90)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 3.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HEAVY RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 1:00 PM  
LOWEST 62 10:00 AM  
AVERAGE 74  
   
......................................................  
 
THE HAYWARD AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 65 2009  
2018  
MINIMUM TEMPERATURE (F) 43 32 2016  
 
SUNRISE AND SUNSET  
DECEMBER 17 2023......SUNRISE 7:17 AM PST SUNSET 4:52 PM PST  
DECEMBER 18 2023......SUNRISE 7:18 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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