654  
CDUS46 KMTR 150827  
CLICCR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
127 AM PDT WED OCT 15 2025  
   
...............................  
 
   
..THE CONCORD AIRPORT CLIMATE SUMMARY FOR OCTOBER 14 2025  
 
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)  
YESTERDAY  
MAXIMUM 58 5:26 PM 96 2020 79 -21 82  
MINIMUM 50 6:59 AM 45 2013 53 -3 59  
2019  
AVERAGE 54 66 -12 71  
 
PRECIPITATION (IN)  
YESTERDAY MM 0.00  
MONTH TO DATE 0.46 0.00  
SINCE OCT 1 0.46 0.00  
SINCE JAN 1 2.53 9.33  
 
DEGREE DAYS  
HEATING  
YESTERDAY 11 0  
MONTH TO DATE 24 0  
SINCE SEP 1 24 1  
SINCE JUL 1 24 4  
 
COOLING  
YESTERDAY 0 6  
MONTH TO DATE 27 168  
SINCE SEP 1 276 391  
SINCE JAN 1 1027 1439    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NE (30)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 3.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 10:00 PM  
LOWEST 72 2:00 PM  
AVERAGE 84  
   
......................................................  
 
THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 93 2020  
MINIMUM TEMPERATURE (F) 53 45 2013  
2019  
 
SUNRISE AND SUNSET  
OCTOBER 15 2025.......SUNRISE 7:17 AM PDT SUNSET 6:30 PM PDT  
OCTOBER 16 2025.......SUNRISE 7:18 AM PDT SUNSET 6:29 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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