131  
CDUS46 KMTR 130831  
CLISJC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1231 AM PST WED DEC 13 2023  
   
...............................  
 
   
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR DECEMBER 12 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 64 3:48 PM 79 1958 59 5 54  
MINIMUM 50 9:24 PM 20 1932 42 8 42  
AVERAGE 57 51 6 48  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.84 1995 0.08 -0.08 0.13  
MONTH TO DATE 0.07 0.86 -0.79 2.13  
SINCE OCT 1 0.74 2.72 -1.98 3.84  
SINCE JAN 1 11.02 12.05 -1.03 5.01  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0 1947  
MONTH TO DATE T  
SINCE DEC 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 14 -6 17  
MONTH TO DATE 118 165 -47 177  
SINCE DEC 1 118 165 -47 177  
SINCE JUL 1 311 530 -219 566  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 808 624 184 894    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION NW (330)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 3.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 10:00 PM  
LOWEST 50 3:00 PM  
AVERAGE 70  
   
......................................................  
 
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 70 1911  
1953  
1958  
MINIMUM TEMPERATURE (F) 42 21 1932  
 
SUNRISE AND SUNSET  
DECEMBER 13 2023......SUNRISE 7:13 AM PST SUNSET 4:50 PM PST  
DECEMBER 14 2023......SUNRISE 7:14 AM PST SUNSET 4:51 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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