139  
CDUS46 KMTR 100831  
CLISJC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
131 AM PDT MON JUL 10 2023  
   
...............................
 
 
   
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR JULY 9 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 69 3:21 PM 99 2002 81 -12 79  
MINIMUM 54 12:57 AM 43 1897 58 -4 58  
AVERAGE 62 69 -7 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.12 1974 0.00 0.00 0.00  
MONTH TO DATE 0.00 0.00 0.00 0.00  
SINCE OCT 1 15.31 13.36 1.95 7.30  
SINCE JAN 1 10.20 9.21 0.99 0.66  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0 1947  
MONTH TO DATE MM  
SINCE JUN 1 MM  
SINCE JUL 1 MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 0 3 0  
MONTH TO DATE 7 0 7 1  
SINCE JUN 1 31 24 7 5  
SINCE JUL 1 7 0 7 1  
 
COOLING  
YESTERDAY 0 4 -4 4  
MONTH TO DATE 35 36 -1 33  
SINCE JUN 1 67 129 -62 203  
SINCE JAN 1 103 180 -77 269    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION NW (330)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 9.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 1:00 AM  
LOWEST 57 1:00 PM  
AVERAGE 70  
   
......................................................
 
 
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 102 1959  
MINIMUM TEMPERATURE (F) 58 43 1893  
 
SUNRISE AND SUNSET  
JULY 10 2023..........SUNRISE 5:56 AM PDT SUNSET 8:30 PM PDT  
JULY 11 2023..........SUNRISE 5:56 AM PDT SUNSET 8:30 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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