072  
CDUS44 KMRX 132214  
CLITRI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MORRISTOWN, TN  
514 PM EST SAT DEC 13 2025  
   
...............................
 
 
   
..THE TRI-CITIES AIRPORT CLIMATE SUMMARY FOR DECEMBER 13 2025
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1937 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 55 3:25 PM 72 2015 50 5 48  
MINIMUM 24 6:55 AM -9 1962 30 -6 21  
AVERAGE 40 40 0 35  
 
PRECIPITATION (IN)  
TODAY 0.00 1.18 1998 0.13 -0.13 0.00  
MONTH TO DATE 1.28 1.68 -0.40 1.22  
SINCE DEC 1 1.28 1.68 -0.40 1.22  
SINCE JAN 1 43.72 41.89 1.83 41.19  
 
SNOWFALL (IN)  
TODAY 0.0 0.0 0.0 0.0  
MONTH TO DATE 0.5 0.6 -0.1 1.1  
SINCE DEC 1 0.5 0.6 -0.1 1.1  
SINCE JUL 1 1.0 0.9 0.1 1.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 25 25 0 30  
MONTH TO DATE 372 313 59 370  
SINCE DEC 1 372 313 59 370  
SINCE JUL 1 1182 1166 16 997  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1154 1104 50 1348    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 1.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1:00 AM  
LOWEST 53 3:00 PM  
AVERAGE 77  
   
......................................................
 
 
THE TRI-CITIES AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 50 71 2015  
MINIMUM TEMPERATURE (F) 30 9 1942  
 
SUNRISE AND SUNSET  
DECEMBER 13 2025......SUNRISE 7:33 AM EST SUNSET 5:15 PM EST  
DECEMBER 14 2025......SUNRISE 7:34 AM EST SUNSET 5:15 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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