021  
CDUS46 KMTR 140045  
CLIHWD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
445 PM PST WED DEC 13 2023  
   
...............................
 
 
   
..THE HAYWARD AIRPORT CLIMATE SUMMARY FOR DECEMBER 13 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 59 2:46 PM 65 2018 59 0 54  
MINIMUM 43 5:11 AM 36 2007 43 0 36  
2011  
2022  
AVERAGE 51 51 0 45  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00  
MONTH TO DATE 0.30 3.20  
SINCE OCT 1 1.44 5.45  
SINCE JAN 1 19.76 7.94  
 
DEGREE DAYS  
HEATING  
TODAY 14 20  
MONTH TO DATE 154 166  
SINCE DEC 1 154 166  
SINCE JUL 1 420 673  
 
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 SE (150)  
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 2.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1:00 AM  
LOWEST 53 3:00 PM  
AVERAGE 77  
   
......................................................
 
 
THE HAYWARD AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 73 2017  
MINIMUM TEMPERATURE (F) 43 35 2007  
 
SUNRISE AND SUNSET  
DECEMBER 13 2023......SUNRISE 7:15 AM PST SUNSET 4:50 PM PST  
DECEMBER 14 2023......SUNRISE 7:15 AM PST SUNSET 4:51 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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