066  
CDUS44 KMRX 140820  
CLITRI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MORRISTOWN, TN  
420 AM EDT MON SEP 14 2026  
   
...............................
 
 
   
..THE TRI-CITIES AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 13 2026
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1937 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 88 3:50 PM 96 2019 82 6 82  
MINIMUM 65 11:59 PM 38 1940 58 7 51  
AVERAGE 77 70 7 67  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.83 1947 0.10 -0.10 0.00  
MONTH TO DATE 0.40 1.21 -0.81 2.22  
SINCE SEP 1 0.40 1.21 -0.81 2.22  
SINCE JAN 1 29.91 32.92 -3.01 36.84  
 
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 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 1 -1 17  
SINCE SEP 1 0 1 -1 17  
SINCE JUL 1 0 2 -2 24  
 
COOLING  
YESTERDAY 12 5 7 2  
MONTH TO DATE 160 85 75 13  
SINCE SEP 1 160 85 75 13  
SINCE JAN 1 1284 1027 257 1060    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 3.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 12:00 AM  
LOWEST 48 4:00 PM  
AVERAGE 74  
   
......................................................
 
 
THE TRI-CITIES AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 97 1998  
MINIMUM TEMPERATURE (F) 57 41 1985  
 
SUNRISE AND SUNSET  
SEPTEMBER 14 2026.....SUNRISE 7:11 AM EDT SUNSET 7:38 PM EDT  
SEPTEMBER 15 2026.....SUNRISE 7:12 AM EDT SUNSET 7:37 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