295  
CDUS46 KMTR 240835  
CLICCR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
135 AM PDT SUN SEP 24 2023  
   
...............................
 
 
   
..THE CONCORD AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 23 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 75 3:32 PM 98 2002 84 -9 90  
MINIMUM 52 6:12 AM 50 2017 57 -5 56  
AVERAGE 64 70 -6 73  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00  
MONTH TO DATE T 0.17  
SINCE OCT 1 24.74 11.33  
SINCE JAN 1 15.46 1.51  
 
DEGREE DAYS  
HEATING  
YESTERDAY 1 0  
MONTH TO DATE 24 0  
SINCE SEP 1 24 0  
SINCE JUL 1 28 2  
 
COOLING  
YESTERDAY 0 8  
MONTH TO DATE 110 244  
SINCE SEP 1 110 244  
SINCE JAN 1 879 1195    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (230)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 5.9  
 
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 86 5:00 AM  
LOWEST 36 3:00 PM  
AVERAGE 61  
   
......................................................
 
 
THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 101 2019  
MINIMUM TEMPERATURE (F) 57 48 2005  
 
SUNRISE AND SUNSET  
SEPTEMBER 24 2023.....SUNRISE 6:58 AM PDT SUNSET 7:02 PM PDT  
SEPTEMBER 25 2023.....SUNRISE 6:58 AM PDT SUNSET 7:01 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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