585  
CDUS46 KMTR 300045  
CLICCR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
545 PM PDT MON SEP 29 2025  
   
...............................
 
 
   
..THE CONCORD AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 29 2025
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1999 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 75 3:01 PM 100 2010 83 -8 83  
MINIMUM 63 3:45 AM 45 2007 56 7 55  
AVERAGE 69 69 0 69  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00  
MONTH TO DATE 0.03 0.00  
SINCE OCT 1 4.33 12.46  
SINCE JAN 1 2.07 9.33  
 
DEGREE DAYS  
HEATING  
TODAY 0 0  
MONTH TO DATE 0 1  
SINCE SEP 1 0 1  
SINCE JUL 1 0 4  
 
COOLING  
TODAY 4 4  
MONTH TO DATE 243 213  
SINCE SEP 1 243 213  
SINCE JAN 1 994 1261    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION SW (230)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 7.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 3:00 AM  
LOWEST 50 3:00 PM  
AVERAGE 69  
   
......................................................
 
 
THE CONCORD AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 97 2012  
MINIMUM TEMPERATURE (F) 56 46 2007  
 
SUNRISE AND SUNSET  
SEPTEMBER 29 2025.....SUNRISE 7:02 AM PDT SUNSET 6:54 PM PDT  
SEPTEMBER 30 2025.....SUNRISE 7:03 AM PDT SUNSET 6:52 PM PDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab CA Page Main Text Page