131  
CDUS46 KMTR 010827  
CLIHWD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
127 AM PDT FRI AUG 01 2025  
   
...............................
 
 
   
..THE HAYWARD AIRPORT CLIMATE SUMMARY FOR JULY 31 2025
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 78 2:10 PM 86 2000 75 3 78  
MINIMUM 60 11:59 PM 56 1999 58 2 57  
2010  
2013  
AVERAGE 69 66 3 68  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00  
MONTH TO DATE T 0.00  
SINCE OCT 1 14.64 21.84  
SINCE JAN 1 7.43 16.98  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0  
MONTH TO DATE 33 4  
SINCE JUN 1 112 27  
SINCE JUL 1 33 4  
 
COOLING  
YESTERDAY 4 3  
MONTH TO DATE 12 206  
SINCE JUN 1 29 276  
SINCE JAN 1 77 307    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 8.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 7:00 PM  
LOWEST 54 3:00 PM  
AVERAGE 71  
   
......................................................
 
 
THE HAYWARD AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 90 2000  
MINIMUM TEMPERATURE (F) 58 55 2010  
2012  
2017  
 
SUNRISE AND SUNSET  
AUGUST 1 2025........SUNRISE 6:13 AM PDT SUNSET 8:16 PM PDT  
AUGUST 2 2025........SUNRISE 6:13 AM PDT SUNSET 8:15 PM PDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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