843  
CDUS44 KBMX 210747  
CLIEET  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BIRMINGHAM AL  
247 AM CDT THU AUG 21 2025  
   
...............................
 
 
   
..THE SHELBY COUNTY AIRPORT CLIMATE SUMMARY FOR AUGUST 20 2025
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1991 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 95 328 PM 100 1999 91 4 90  
MINIMUM 73 1159 PM 66 2000 71 2 68  
AVERAGE 84 81 3 79  
 
PRECIPITATION (IN)  
YESTERDAY 0.33 1.21 2002 0.16 0.17 0.00  
MONTH TO DATE 3.65 3.20 0.45 0.57  
SINCE JUN 1 10.50 12.71 -2.21 16.28  
SINCE JAN 1 43.52 38.44 5.08 41.30  
 
DEGREE DAYS  
COOLING  
YESTERDAY 19 16 3 14  
MONTH TO DATE 303 328 -25 344  
SINCE JUN 1 1260 1240 20 1342  
SINCE JAN 1 1668 1570 98 1768    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 2.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 700 AM  
LOWEST 49 200 PM  
AVERAGE 72  
   
......................................................
 
 
THE SHELBY COUNTY AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 91 99 2007  
MINIMUM TEMPERATURE (F) 71 60 1997  
 
SUNRISE AND SUNSET  
AUGUST 21 2025........SUNRISE 614 AM CDT SUNSET 725 PM CDT  
AUGUST 22 2025........SUNRISE 615 AM CDT SUNSET 724 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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