859  
CDUS46 KMTR 210829  
CLICCR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1229 AM PST SAT DEC 21 2024  
   
...............................  
 
   
..THE CONCORD AIRPORT CLIMATE SUMMARY FOR DECEMBER 20 2024  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1999 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 50 3:50 PM 69 1999 58 -8 59  
MINIMUM 45 11:22 PM 28 2012 40 5 53  
AVERAGE 48 49 -1 56  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.32  
MONTH TO DATE 1.13 1.59  
SINCE OCT 1 1.91 2.32  
SINCE JAN 1 11.24 17.79  
 
DEGREE DAYS  
HEATING  
YESTERDAY 17 9  
MONTH TO DATE 275 243  
SINCE DEC 1 275 243  
SINCE JUL 1 614 549  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 1454 1015    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION NE (50)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 5.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 8:00 PM  
LOWEST 89 11:00 AM  
AVERAGE 95  
   
......................................................  
 
THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 58 69 1999  
2014  
MINIMUM TEMPERATURE (F) 40 29 2011  
 
SUNRISE AND SUNSET  
DECEMBER 21 2024......SUNRISE 7:21 AM PST SUNSET 4:53 PM PST  
DECEMBER 22 2024......SUNRISE 7:21 AM PST SUNSET 4:53 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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