634  
CDUS46 KMTR 120033  
CLICCR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
533 PM PDT MON SEP 11 2023  
   
...............................
 
 
   
..THE CONCORD AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 11 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 91 3:00 PM 102 2015 86 5 91  
MINIMUM 57 5:34 AM 52 2000 59 -2 67  
AVERAGE 74 72 2 79  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00  
MONTH TO DATE T T  
SINCE OCT 1 24.74 11.16  
SINCE JAN 1 15.46 1.34  
 
DEGREE DAYS  
HEATING  
TODAY 0 0  
MONTH TO DATE 23 0  
SINCE SEP 1 23 0  
SINCE JUL 1 27 2  
 
COOLING  
TODAY 9 14  
MONTH TO DATE 54 198  
SINCE SEP 1 54 198  
SINCE JAN 1 823 1149    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION W (280)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 4.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 81 5:00 AM  
LOWEST 24 1:00 PM  
AVERAGE 53  
   
......................................................
 
 
THE CONCORD AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 100 2006  
MINIMUM TEMPERATURE (F) 58 52 2008  
 
SUNRISE AND SUNSET  
SEPTEMBER 11 2023.....SUNRISE 6:46 AM PDT SUNSET 7:22 PM PDT  
SEPTEMBER 12 2023.....SUNRISE 6:47 AM PDT SUNSET 7:21 PM PDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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