152  
CDUS46 KMTR 120836  
CLISJC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
136 AM PDT TUE SEP 12 2023  
   
...............................
 
 
   
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 11 2023
 
 
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)  
YESTERDAY  
MAXIMUM 84 1:12 PM 100 1979 81 3 84  
MINIMUM 56 5:40 AM 44 1896 58 -2 66  
1906  
1928  
AVERAGE 70 70 0 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.47 1918 0.00 0.00 0.00  
MONTH TO DATE T 0.01 -0.01 0.00  
SINCE OCT 1 15.31 13.42 1.89 7.30  
SINCE JAN 1 10.20 9.27 0.93 0.66  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0 1947  
MONTH TO DATE MM  
SINCE SEP 1 MM  
SINCE JUL 1 MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 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  
YESTERDAY 5 5 0 10  
MONTH TO DATE 65 55 10 164  
SINCE SEP 1 65 55 10 164  
SINCE JAN 1 581 498 83 772    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION N (340)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 5.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 81 10:00 PM  
LOWEST 32 12:00 PM  
AVERAGE 57  
   
......................................................
 
 
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 101 1979  
MINIMUM TEMPERATURE (F) 58 43 1894  
 
SUNRISE AND SUNSET  
SEPTEMBER 12 2023.....SUNRISE 6:47 AM PDT SUNSET 7:20 PM PDT  
SEPTEMBER 13 2023.....SUNRISE 6:48 AM PDT SUNSET 7:19 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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