586  
CDUS46 KMTR 010030  
CLICCR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
430 PM PST SUN DEC 31 2023  
   
...............................
 
 
   
..THE CONCORD AIRPORT CLIMATE SUMMARY FOR DECEMBER 31 2023
 
 
VALID TODAY AS OF 0400 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 58 1:43 PM 65 2019 57 1 59  
MINIMUM 46 6:42 AM 29 2015 40 6 51  
AVERAGE 52 49 3 55  
 
PRECIPITATION (IN)  
TODAY 0.00 3.04  
MONTH TO DATE 2.23 7.97  
SINCE OCT 1 2.96 9.28  
SINCE JAN 1 18.43 10.79  
 
DEGREE DAYS  
HEATING  
TODAY 13 10  
MONTH TO DATE 369 541  
SINCE DEC 1 369 541  
SINCE JUL 1 675 983  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 1015 1312    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SE (120)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 3.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 12:00 AM  
LOWEST 77 1:00 PM  
AVERAGE 87  
   
......................................................
 
 
THE CONCORD AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 66 2018  
2020  
MINIMUM TEMPERATURE (F) 40 30 2016  
 
SUNRISE AND SUNSET  
DECEMBER 31 2023......SUNRISE 7:24 AM PST SUNSET 4:59 PM PST  
JANUARY 1 2024.......SUNRISE 7:24 AM PST SUNSET 4:59 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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