266  
CDUS44 KMRX 120807  
CLICHA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MORRISTOWN, TN  
407 AM EDT FRI SEP 12 2025  
   
...............................  
 
   
..THE CHATTANOOGA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 11 2025  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1879 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 88 2:54 PM 96 1925 86 2 88  
2010  
MINIMUM 62 6:50 AM 46 1940 65 -3 62  
AVERAGE 75 76 -1 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.83 2017 0.15 -0.15 0.00  
MONTH TO DATE 0.73 1.43 -0.70 0.02  
SINCE SEP 1 0.73 1.43 -0.70 0.02  
SINCE JAN 1 46.56 38.56 8.00 28.95  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 10 10 0 10  
MONTH TO DATE 100 129 -29 130  
SINCE SEP 1 100 129 -29 130  
SINCE JAN 1 1745 1702 43 2024    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 1.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 2:00 AM  
LOWEST 42 3:00 PM  
AVERAGE 68  
   
......................................................  
 
THE CHATTANOOGA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 98 2019  
MINIMUM TEMPERATURE (F) 65 40 1940  
 
SUNRISE AND SUNSET  
SEPTEMBER 12 2025.....SUNRISE 7:22 AM EDT SUNSET 7:52 PM EDT  
SEPTEMBER 13 2025.....SUNRISE 7:22 AM EDT SUNSET 7:50 PM EDT  
 
- 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 TN Page
The Nexlab VA Page
The Nexlab NC Page
Main Text Page