562  
CDUS46 KMTR 310835  
CLIHWD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1235 AM PST SUN DEC 31 2023  
   
...............................  
 
   
..THE HAYWARD AIRPORT CLIMATE SUMMARY FOR DECEMBER 30 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 62 2:17 PM 63 2013 59 3 62  
MINIMUM 50 11:38 PM 35 2010 42 8 54  
2015  
AVERAGE 56 51 5 58  
 
PRECIPITATION (IN)  
YESTERDAY 0.38 0.80  
MONTH TO DATE 3.72 6.19  
SINCE OCT 1 4.86 8.44  
SINCE JAN 1 23.18 10.93  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 7  
MONTH TO DATE 307 425  
SINCE DEC 1 307 425  
SINCE JUL 1 573 932  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 448 430    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 5.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 5:00 AM  
LOWEST 72 2:00 PM  
AVERAGE 85  
   
......................................................  
 
THE HAYWARD AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 63 2001  
2019  
MINIMUM TEMPERATURE (F) 42 34 2007  
 
SUNRISE AND SUNSET  
DECEMBER 31 2023......SUNRISE 7:23 AM PST SUNSET 5:00 PM PST  
JANUARY 1 2024.......SUNRISE 7:23 AM PST SUNSET 5:01 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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