815  
CDUS46 KMTR 010827  
CLICCR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
127 AM PDT THU JUN 01 2023  
   
...............................
 
 
   
..THE CONCORD AIRPORT CLIMATE SUMMARY FOR MAY 31 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 74 3:38 PM 105 2001 81 -7 87  
MINIMUM 54 5:45 AM 50 2011 55 -1 51  
AVERAGE 64 68 -4 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.00  
MONTH TO DATE 0.46 T  
SINCE OCT 1 24.74 11.15  
SINCE JAN 1 15.46 1.33  
 
DEGREE DAYS  
HEATING  
YESTERDAY 1 0  
MONTH TO DATE 107 63  
SINCE MAR 1 731 437  
SINCE JUL 1 2638 2106  
 
COOLING  
YESTERDAY 0 4  
MONTH TO DATE 40 92  
SINCE MAR 1 62 106  
SINCE JAN 1 62 106    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 13.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 12:00 AM  
LOWEST 44 2:00 PM  
AVERAGE 62  
   
......................................................
 
 
THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 97 2013  
MINIMUM TEMPERATURE (F) 55 48 2011  
 
SUNRISE AND SUNSET  
JUNE 1 2023..........SUNRISE 5:47 AM PDT SUNSET 8:25 PM PDT  
JUNE 2 2023..........SUNRISE 5:47 AM PDT SUNSET 8:26 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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