125  
CDUS44 KMRX 202222  
CLITRI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MORRISTOWN, TN  
522 PM EST SAT DEC 20 2025  
   
...............................
 
 
   
..THE TRI-CITIES AIRPORT CLIMATE SUMMARY FOR DECEMBER 20 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 58 3:12 PM 66 1978 48 10 43  
1987  
MINIMUM 21 6:54 AM 5 2004 29 -8 32  
AVERAGE 40 39 1 38  
 
PRECIPITATION (IN)  
TODAY 0.00 1.29 1946 0.12 -0.12 0.03  
MONTH TO DATE 1.84 2.53 -0.69 1.85  
SINCE DEC 1 1.84 2.53 -0.69 1.85  
SINCE JAN 1 44.28 42.74 1.54 41.82  
 
SNOWFALL (IN)  
TODAY 0.0 0.1 -0.1 T  
MONTH TO DATE 0.9 1.0 -0.1 1.1  
SINCE DEC 1 0.9 1.0 -0.1 1.1  
SINCE JUL 1 1.4 1.3 0.1 1.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 25 26 -1 27  
MONTH TO DATE 578 494 84 497  
SINCE DEC 1 578 494 84 497  
SINCE JUL 1 1388 1347 41 1124  
 
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 7 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 1.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 8:00 AM  
LOWEST 26 2:00 PM  
AVERAGE 59  
   
......................................................
 
 
THE TRI-CITIES AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 48 74 2013  
MINIMUM TEMPERATURE (F) 29 7 1963  
1996  
 
SUNRISE AND SUNSET  
DECEMBER 20 2025......SUNRISE 7:37 AM EST SUNSET 5:17 PM EST  
DECEMBER 21 2025......SUNRISE 7:38 AM EST SUNSET 5:18 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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