064  
CDUS46 KMTR 310830  
CLISJC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1230 AM PST FRI JAN 31 2025  
   
...............................  
 
   
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR JANUARY 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 56 4:19 PM 73 2024 61 -5 73  
MINIMUM 44 11:39 PM 24 1895 43 1 52  
AVERAGE 50 52 -2 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 3.60 1968 0.09 -0.09 0.00  
MONTH TO DATE 0.11 2.70 -2.59 3.64  
SINCE OCT 1 3.75 6.85 -3.10 7.07  
SINCE JAN 1 0.11 2.70 -2.59 3.64  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0 1947  
MONTH TO DATE T  
SINCE DEC 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 15 14 1 2  
MONTH TO DATE 341 427 -86 310  
SINCE DEC 1 614 873 -259 594  
SINCE JUL 1 840 1238 -398 787  
 
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 NE (60)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 3.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79 11:00 PM  
LOWEST 52 3:00 PM  
AVERAGE 66  
   
......................................................  
 
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 61 71 1962  
2015  
MINIMUM TEMPERATURE (F) 43 26 1895  
1917  
 
SUNRISE AND SUNSET  
JANUARY 31 2025.......SUNRISE 7:11 AM PST SUNSET 5:32 PM PST  
FEBRUARY 1 2025......SUNRISE 7:10 AM PST SUNSET 5:33 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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