276  
CDUS46 KMTR 250843  
CLICCR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
143 AM PDT MON SEP 25 2023  
   
...............................
 
 
   
..THE CONCORD AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 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 75 2:29 PM 101 2019 84 -9 94  
MINIMUM 51 6:30 AM 48 2005 57 -6 57  
AVERAGE 63 70 -7 76  
 
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 2 0  
MONTH TO DATE 26 0  
SINCE SEP 1 26 0  
SINCE JUL 1 30 2  
 
COOLING  
YESTERDAY 0 11  
MONTH TO DATE 110 255  
SINCE SEP 1 110 255  
SINCE JAN 1 879 1206    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (220)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 8.6  
 
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 90 7:00 AM  
LOWEST 38 3:00 PM  
AVERAGE 64  
   
......................................................
 
 
THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 99 2019  
MINIMUM TEMPERATURE (F) 57 48 2005  
 
SUNRISE AND SUNSET  
SEPTEMBER 25 2023.....SUNRISE 6:58 AM PDT SUNSET 7:01 PM PDT  
SEPTEMBER 26 2023.....SUNRISE 6:59 AM PDT SUNSET 6:59 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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