554  
CDUS46 KMTR 310826  
CLISJC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
126 AM PDT THU JUL 31 2025  
   
...............................
 
 
   
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR JULY 30 2025
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1893 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 75 2:09 PM 102 1995 81 -6 80  
MINIMUM 61 11:59 PM 40 1895 59 2 63  
AVERAGE 68 70 -2 72  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.21 1966 0.00 0.00 0.00  
MONTH TO DATE 0.00 0.00 0.00 T  
SINCE OCT 1 9.31 13.36 -4.05 17.06  
SINCE JAN 1 5.67 9.21 -3.54 13.63  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0 1947  
MONTH TO DATE T  
SINCE JUN 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 1 0 1 0  
SINCE JUN 1 24 24 0 0  
SINCE JUL 1 1 0 1 0  
 
COOLING  
YESTERDAY 3 5 -2 7  
MONTH TO DATE 82 139 -57 326  
SINCE JUN 1 122 232 -110 494  
SINCE JAN 1 163 283 -120 564    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION NW (330)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 7.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 10:00 PM  
LOWEST 52 11:00 AM  
AVERAGE 68  
   
......................................................
 
 
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 101 1993  
MINIMUM TEMPERATURE (F) 59 42 1895  
 
SUNRISE AND SUNSET  
JULY 31 2025..........SUNRISE 6:12 AM PDT SUNSET 8:16 PM PDT  
AUGUST 1 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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