232  
CDUS46 KMTR 010029  
CLISJC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
529 PM PDT SAT SEP 30 2023  
   
...............................
 
 
   
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 30 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1893 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 69 2:22 PM 95 2001 79 -10 89  
MINIMUM 60 8:18 AM 35 1893 56 4 59  
AVERAGE 65 67 -2 74  
 
PRECIPITATION (IN)  
TODAY 0.08 0.69 1894 0.01 0.07 0.00  
MONTH TO DATE 0.08 0.07 0.01 0.51  
SINCE OCT 1 15.39 13.48 1.91 7.81  
SINCE JAN 1 10.28 9.33 0.95 1.17  
 
SNOWFALL (IN)  
TODAY MM 0.0 1947  
MONTH TO DATE T  
SINCE SEP 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
TODAY 0 1 -1 0  
MONTH TO DATE 0 8 -8 0  
SINCE SEP 1 0 8 -8 0  
SINCE JUL 1 7 14 -7 1  
 
COOLING  
TODAY 0 3 -3 9  
MONTH TO DATE 140 130 10 241  
SINCE SEP 1 140 130 10 241  
SINCE JAN 1 656 573 83 849    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION N (340)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 4.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 2:00 AM  
LOWEST 59 3:00 PM  
AVERAGE 75  
   
......................................................
 
 
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 97 1980  
MINIMUM TEMPERATURE (F) 56 39 1894  
 
SUNRISE AND SUNSET  
SEPTEMBER 30 2023.....SUNRISE 7:02 AM PDT SUNSET 6:52 PM PDT  
OCTOBER 1 2023.......SUNRISE 7:03 AM PDT SUNSET 6:51 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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