530  
CDUS44 KMRX 210819  
CLITYS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MORRISTOWN, TN  
419 AM EDT MON JUL 21 2025  
   
...............................
 
 
...THE KNOXVILLE MCGHEE TYSON AIRPORT CLIMATE SUMMARY FOR JULY 20 2025...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 91 5:02 PM 99 1874 89 2 87  
1926  
1932  
MINIMUM 76 6:24 AM 60 1909 69 7 70  
1984  
2009  
AVERAGE 84 79 5 79  
 
PRECIPITATION (IN)  
YESTERDAY 0.41 2.15 1921 0.18 0.23 0.74  
MONTH TO DATE 2.36 3.53 -1.17 1.45  
SINCE JUN 1 4.85 7.77 -2.92 5.99  
SINCE JAN 1 29.72 31.07 -1.35 34.27  
 
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 0 2 -2 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 19 14 5 14  
MONTH TO DATE 347 273 74 339  
SINCE JUN 1 732 584 148 710  
SINCE JAN 1 951 768 183 939    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 7.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 12:00 AM  
LOWEST 56 5:00 PM  
AVERAGE 75  
   
......................................................
 
 
THE KNOXVILLE MCGHEE TYSON AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 98 1926  
1934  
1985  
MINIMUM TEMPERATURE (F) 69 59 1903  
2009  
 
SUNRISE AND SUNSET  
JULY 21 2025..........SUNRISE 6:36 AM EDT SUNSET 8:49 PM EDT  
JULY 22 2025..........SUNRISE 6:36 AM EDT SUNSET 8:48 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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