639  
CDUS46 KMTR 190842  
CLIHWD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1242 AM PST FRI JAN 19 2024  
   
...............................  
 
   
..THE HAYWARD AIRPORT CLIMATE SUMMARY FOR JANUARY 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 63 4:09 PM 79 2021 59 4 56  
MINIMUM 46 4:48 AM 33 2007 43 3 39  
AVERAGE 55 51 4 48  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.21  
MONTH TO DATE 2.98 7.96  
SINCE OCT 1 7.84 20.74  
SINCE JAN 1 2.98 7.96  
 
DEGREE DAYS  
HEATING  
YESTERDAY 10 17  
MONTH TO DATE 236 211  
SINCE DEC 1 553 647  
SINCE JUL 1 819 1154  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 0 0    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION NE (40)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 3.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 1:00 AM  
LOWEST 64 5:00 PM  
AVERAGE 77  
   
......................................................  
 
THE HAYWARD AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 72 2009  
MINIMUM TEMPERATURE (F) 43 35 2007  
2013  
 
SUNRISE AND SUNSET  
JANUARY 19 2024.......SUNRISE 7:21 AM PST SUNSET 5:18 PM PST  
JANUARY 20 2024.......SUNRISE 7:20 AM PST SUNSET 5:19 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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