907  
CDUS46 KMTR 200839  
CLISJC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
139 AM PDT TUE MAY 20 2025  
   
...............................  
 
   
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR MAY 19 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 80 2:44 PM 93 1931 74 6 77  
MINIMUM 53 5:21 AM 35 1896 53 0 54  
AVERAGE 67 63 4 66  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.47 1925 0.00 0.00 0.00  
2019  
MONTH TO DATE 0.11 0.27 -0.16 0.67  
SINCE OCT 1 9.31 13.06 -3.75 17.06  
SINCE JAN 1 5.67 8.91 -3.24 13.63  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0 1947  
MONTH TO DATE T  
SINCE MAR 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 3 -3 0  
MONTH TO DATE 42 75 -33 36  
SINCE MAR 1 525 550 -25 409  
SINCE JUL 1 1696 2133 -437 1473  
 
COOLING  
YESTERDAY 2 1 1 1  
MONTH TO DATE 15 19 -4 32  
SINCE MAR 1 21 32 -11 47  
SINCE JAN 1 21 32 -11 47    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION N (340)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 9.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 81 11:00 PM  
LOWEST 35 1:00 PM  
AVERAGE 58  
   
......................................................  
 
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 97 1988  
MINIMUM TEMPERATURE (F) 53 33 1895  
 
SUNRISE AND SUNSET  
MAY 20 2025...........SUNRISE 5:55 AM PDT SUNSET 8:14 PM PDT  
MAY 21 2025...........SUNRISE 5:54 AM PDT SUNSET 8:15 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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