821  
CDUS46 KMTR 050833  
CLICCR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1233 AM PST TUE DEC 05 2023  
   
...............................
 
 
   
..THE CONCORD AIRPORT CLIMATE SUMMARY FOR DECEMBER 4 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1999 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 67 3:45 PM 70 2014 60 7 62  
MINIMUM 47 7:45 AM 29 2013 42 5 40  
AVERAGE 57 51 6 51  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T  
MONTH TO DATE 0.01 1.48  
SINCE OCT 1 0.74 2.79  
SINCE JAN 1 16.21 4.30  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 14  
MONTH TO DATE 34 79  
SINCE DEC 1 34 79  
SINCE JUL 1 340 521  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 1015 1312    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION SE (120)  
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 2.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 5:00 AM  
LOWEST 56 4:00 PM  
AVERAGE 77  
   
......................................................
 
 
THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 68 2014  
MINIMUM TEMPERATURE (F) 41 25 2013  
 
SUNRISE AND SUNSET  
DECEMBER 5 2023......SUNRISE 7:09 AM PST SUNSET 4:49 PM PST  
DECEMBER 6 2023......SUNRISE 7:10 AM PST SUNSET 4:48 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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