691  
CDUS46 KMTR 210826  
CLISJC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1226 AM PST TUE JAN 21 2025  
   
...............................  
 
   
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR JANUARY 20 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 68 4:15 PM 72 2009 60 8 63  
MINIMUM 40 11:45 PM 24 1922 42 -2 54  
AVERAGE 54 51 3 59  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.29 2010 0.09 -0.09 0.33  
MONTH TO DATE 0.11 1.82 -1.71 1.68  
SINCE OCT 1 3.75 5.97 -2.22 5.11  
SINCE JAN 1 0.11 1.82 -1.71 1.68  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0 1947  
MONTH TO DATE T  
SINCE DEC 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 11 14 -3 6  
MONTH TO DATE 206 287 -81 255  
SINCE DEC 1 479 733 -254 539  
SINCE JUL 1 705 1098 -393 732  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 2 0 2 0  
SINCE JAN 1 0 0 0 0    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION N (10)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 4.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 8:00 AM  
LOWEST 16 4:00 PM  
AVERAGE 51  
   
......................................................  
 
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 71 1950  
MINIMUM TEMPERATURE (F) 42 23 1922  
 
SUNRISE AND SUNSET  
JANUARY 21 2025.......SUNRISE 7:18 AM PST SUNSET 5:21 PM PST  
JANUARY 22 2025.......SUNRISE 7:18 AM PST SUNSET 5:22 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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