665  
CDUS46 KMTR 250839  
CLICCR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1239 AM PST MON DEC 25 2023  
   
...............................
 
 
   
..THE CONCORD AIRPORT CLIMATE SUMMARY FOR DECEMBER 24 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 58 2:32 PM 67 2013 57 1 61  
MINIMUM 37 7:58 AM 26 2011 40 -3 37  
AVERAGE 48 49 -1 49  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00  
MONTH TO DATE 1.59 3.14  
SINCE OCT 1 2.32 4.45  
SINCE JAN 1 17.79 5.96  
 
DEGREE DAYS  
HEATING  
YESTERDAY 17 16  
MONTH TO DATE 292 445  
SINCE DEC 1 292 445  
SINCE JUL 1 598 887  
 
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 N (20)  
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 2.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 4:00 AM  
LOWEST 62 3:00 PM  
AVERAGE 76  
   
......................................................
 
 
THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 64 1999  
MINIMUM TEMPERATURE (F) 40 27 2011  
 
SUNRISE AND SUNSET  
DECEMBER 25 2023......SUNRISE 7:22 AM PST SUNSET 4:54 PM PST  
DECEMBER 26 2023......SUNRISE 7:23 AM PST SUNSET 4:55 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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