060  
CDUS46 KMTR 220040  
CLISJC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
540 PM PDT THU SEP 21 2023  
   
...............................
 
 
   
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 21 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 81 2:14 PM 101 1928 80 1 75  
1939  
MINIMUM 56 6:39 AM 39 1893 57 -1 62  
AVERAGE 69 68 1 69  
 
PRECIPITATION (IN)  
TODAY 0.00 0.66 2013 0.00 0.00 0.00  
MONTH TO DATE T 0.03 -0.03 0.51  
SINCE OCT 1 15.31 13.44 1.87 7.81  
SINCE JAN 1 10.20 9.29 0.91 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 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 7 6 1 1  
 
COOLING  
TODAY 4 4 0 4  
MONTH TO DATE 119 97 22 196  
SINCE SEP 1 119 97 22 196  
SINCE JAN 1 635 540 95 804    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION S (160)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 7.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 77 1:00 AM  
LOWEST 31 2:00 PM  
AVERAGE 54  
   
......................................................
 
 
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 101 1939  
MINIMUM TEMPERATURE (F) 57 36 1895  
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2023.....SUNRISE 6:55 AM PDT SUNSET 7:06 PM PDT  
SEPTEMBER 22 2023.....SUNRISE 6:55 AM PDT SUNSET 7:05 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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