602  
CDUS46 KMTR 170841  
CLISJC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
141 AM PDT THU APR 17 2025  
   
...............................  
 
   
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR APRIL 16 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 67 2:31 PM 89 1966 69 -2 77  
1987  
1999  
MINIMUM 49 5:37 AM 29 1894 48 1 48  
1896  
AVERAGE 58 59 -1 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.35 2006 0.03 -0.03 0.00  
MONTH TO DATE 0.25 0.70 -0.45 0.81  
SINCE OCT 1 9.14 12.42 -3.28 16.39  
SINCE JAN 1 5.50 8.27 -2.77 12.96  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0 1947  
MONTH TO DATE T  
SINCE MAR 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 7 0 2  
MONTH TO DATE 89 118 -29 104  
SINCE MAR 1 401 396 5 340  
SINCE JUL 1 1572 1979 -407 1404  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 1 0 1 4  
SINCE MAR 1 6 2 4 4  
SINCE JAN 1 6 2 4 4    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION N (350)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 6.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 7:00 AM  
LOWEST 50 3:00 PM  
AVERAGE 65  
   
......................................................  
 
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 89 1954  
MINIMUM TEMPERATURE (F) 48 29 1894  
 
SUNRISE AND SUNSET  
APRIL 17 2025.........SUNRISE 6:30 AM PDT SUNSET 7:45 PM PDT  
APRIL 18 2025.........SUNRISE 6:28 AM PDT SUNSET 7:46 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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