404  
CDUS46 KMTR 210835  
CLISJC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
135 AM PDT SAT OCT 21 2023  
   
...............................
 
 
   
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR OCTOBER 20 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 76 1:12 PM 91 1991 75 1 82  
MINIMUM 59 6:33 AM 36 1949 52 7 55  
AVERAGE 68 64 4 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.80 1985 0.02 -0.02 0.00  
MONTH TO DATE 0.00 0.27 -0.27 0.00  
SINCE OCT 1 0.00 0.27 -0.27 0.00  
SINCE JAN 1 10.28 9.60 0.68 1.17  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0 1947  
MONTH TO DATE T  
SINCE SEP 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 3 -3 0  
MONTH TO DATE 0 32 -32 3  
SINCE SEP 1 1 44 -43 3  
SINCE JUL 1 8 50 -42 4  
 
COOLING  
YESTERDAY 3 1 2 4  
MONTH TO DATE 132 42 90 45  
SINCE SEP 1 272 172 100 286  
SINCE JAN 1 788 615 173 894    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION NW (320)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 5.6  
 
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 87 5:00 AM  
LOWEST 53 11:00 AM  
AVERAGE 70  
   
......................................................
 
 
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 89 1901  
1929  
MINIMUM TEMPERATURE (F) 52 35 1912  
 
SUNRISE AND SUNSET  
OCTOBER 21 2023.......SUNRISE 7:21 AM PDT SUNSET 6:23 PM PDT  
OCTOBER 22 2023.......SUNRISE 7:22 AM PDT SUNSET 6:21 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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