721  
CDUS46 KMTR 210029  
CLISJC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
429 PM PST MON JAN 20 2025  
   
...............................
 
 
   
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR JANUARY 20 2025
 
 
VALID TODAY AS OF 0400 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 68 3:30 PM 72 2009 60 8 63  
MINIMUM 40 6:50 AM 24 1922 42 -2 54  
AVERAGE 54 51 3 59  
 
PRECIPITATION (IN)  
TODAY 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)  
TODAY MM 0.0 1947  
MONTH TO DATE T  
SINCE DEC 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
TODAY 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  
TODAY 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 2 RESULTANT WIND DIRECTION N (340)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 4.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 8:00 AM  
LOWEST 18 3:00 PM  
AVERAGE 52  
   
......................................................
 
 
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 71 1950  
MINIMUM TEMPERATURE (F) 42 23 1922  
 
SUNRISE AND SUNSET  
JANUARY 20 2025.......SUNRISE 7:19 AM PST SUNSET 5:19 PM PST  
JANUARY 21 2025.......SUNRISE 7:18 AM PST SUNSET 5:21 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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