711  
CDUS44 KMRX 130809  
CLITRI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MORRISTOWN, TN  
409 AM EDT WED AUG 13 2025  
   
...............................  
 
   
..THE TRI-CITIES AIRPORT CLIMATE SUMMARY FOR AUGUST 12 2025  
 
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)  
YESTERDAY  
MAXIMUM 83 3:55 PM 96 1944 86 -3 85  
2016  
MINIMUM 66 4:17 AM 51 2008 64 2 58  
AVERAGE 75 75 0 72  
 
PRECIPITATION (IN)  
YESTERDAY 0.07 1.17 2004 0.12 -0.05 0.00  
MONTH TO DATE 1.82 1.70 0.12 2.33  
SINCE JUN 1 14.30 10.62 3.68 8.31  
SINCE JAN 1 31.19 29.65 1.54 27.51  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE JUN 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 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 2 7 -5 1  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 10 10 0 7  
MONTH TO DATE 93 120 -27 140  
SINCE JUN 1 781 672 109 827  
SINCE JAN 1 896 767 129 953    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 0.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 12:00 AM  
LOWEST 67 3:00 PM  
AVERAGE 84  
   
......................................................  
 
THE TRI-CITIES AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 96 2010  
2016  
MINIMUM TEMPERATURE (F) 64 51 1946  
1964  
 
SUNRISE AND SUNSET  
AUGUST 13 2025........SUNRISE 6:46 AM EDT SUNSET 8:22 PM EDT  
AUGUST 14 2025........SUNRISE 6:47 AM EDT SUNSET 8:21 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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