539  
CDUS46 KMTR 230836  
CLISJC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
136 AM PDT THU OCT 23 2025  
   
...............................
 
 
   
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR OCTOBER 22 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 70 2:06 PM 90 1901 75 -5 74  
1929  
MINIMUM 56 11:54 PM 31 1906 52 4 54  
AVERAGE 63 63 0 64  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.34 1899 0.02 -0.02 0.00  
MONTH TO DATE 1.97 0.31 1.66 0.00  
SINCE OCT 1 1.97 0.31 1.66 0.00  
SINCE JAN 1 8.08 9.64 -1.56 13.63  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0 1947  
MONTH TO DATE T  
SINCE SEP 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 2 3 -1 1  
MONTH TO DATE 30 38 -8 1  
SINCE SEP 1 30 50 -20 1  
SINCE JUL 1 31 56 -25 1  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 40 44 -4 183  
SINCE SEP 1 250 174 76 396  
SINCE JAN 1 599 617 -18 1206    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NW (330)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 5.5  
 
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 84 3:00 AM  
LOWEST 57 3:00 PM  
AVERAGE 71  
   
......................................................
 
 
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 90 1959  
MINIMUM TEMPERATURE (F) 51 35 1906  
 
SUNRISE AND SUNSET  
OCTOBER 23 2025.......SUNRISE 7:24 AM PDT SUNSET 6:20 PM PDT  
OCTOBER 24 2025.......SUNRISE 7:25 AM PDT SUNSET 6:18 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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