710  
CDUS46 KMTR 010030  
CLISJC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
430 PM PST SUN DEC 31 2023  
   
...............................  
 
   
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR DECEMBER 31 2023  
 
VALID TODAY AS OF 0400 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 61 3:46 PM 70 1958 59 2 62  
MINIMUM 49 7:42 AM 22 1895 41 8 51  
AVERAGE 55 50 5 57  
 
PRECIPITATION (IN)  
TODAY 0.00 2.39 1909 0.07 -0.07 1.14  
MONTH TO DATE 2.76 2.29 0.47 4.70  
SINCE OCT 1 3.43 4.15 -0.72 6.41  
SINCE JAN 1 13.71 13.48 0.23 7.58  
 
SNOWFALL (IN)  
TODAY MM 0.0 1947  
MONTH TO DATE T  
SINCE DEC 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
TODAY 10 15 -5 8  
MONTH TO DATE 284 449 -165 442  
SINCE DEC 1 284 449 -165 442  
SINCE JUL 1 477 814 -337 831  
 
COOLING  
TODAY 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 SE (150)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 2.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 1:00 AM  
LOWEST 60 3:00 PM  
AVERAGE 75  
   
......................................................  
 
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 69 1996  
MINIMUM TEMPERATURE (F) 41 22 1919  
 
SUNRISE AND SUNSET  
DECEMBER 31 2023......SUNRISE 7:22 AM PST SUNSET 5:00 PM PST  
JANUARY 1 2024.......SUNRISE 7:22 AM PST SUNSET 5:01 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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