935  
CDUS46 KMTR 090027  
CLISJC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
527 PM PDT MON SEP 08 2025  
   
...............................  
 
   
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 8 2025  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 82 2:53 PM 104 2022 82 0 90  
MINIMUM 60 4:11 AM 42 1914 58 2 60  
AVERAGE 71 70 1 75  
 
PRECIPITATION (IN)  
TODAY 0.00 0.22 1985 0.01 -0.01 0.00  
MONTH TO DATE 0.00 0.01 -0.01 0.00  
SINCE OCT 1 9.31 13.42 -4.11 17.06  
SINCE JAN 1 5.67 9.27 -3.60 13.63  
 
SNOWFALL (IN)  
TODAY MM 0.0 1947  
MONTH TO DATE T  
SINCE SEP 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 1 6 -5 0  
 
COOLING  
TODAY 6 5 1 10  
MONTH TO DATE 50 40 10 78  
SINCE SEP 1 50 40 10 78  
SINCE JAN 1 399 483 -84 888    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION N (340)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 4.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 2:00 AM  
LOWEST 47 2:00 PM  
AVERAGE 67  
   
......................................................  
 
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 106 1944  
MINIMUM TEMPERATURE (F) 58 43 1928  
 
SUNRISE AND SUNSET  
SEPTEMBER 8 2025.....SUNRISE 6:44 AM PDT SUNSET 7:25 PM PDT  
SEPTEMBER 9 2025.....SUNRISE 6:45 AM PDT SUNSET 7:24 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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