794  
CDUS44 KMRX 210815  
CLITRI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MORRISTOWN, TN  
415 AM EDT MON APR 21 2025  
   
...............................  
 
   
..THE TRI-CITIES AIRPORT CLIMATE SUMMARY FOR APRIL 20 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 84 4:02 PM 85 2002 71 13 66  
2016  
2023  
MINIMUM 53 6:34 AM 24 1983 45 8 49  
AVERAGE 69 58 11 58  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.40 1940 0.12 -0.12 T  
MONTH TO DATE 2.04 2.55 -0.51 2.20  
SINCE MAR 1 4.71 6.51 -1.80 5.75  
SINCE JAN 1 11.34 13.97 -2.63 13.69  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.1 -0.1 0.0  
SINCE MAR 1 T 1.2 -1.2 0.0  
SINCE JUL 1 7.9 9.2 -1.3 3.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 8 -8 7  
MONTH TO DATE 185 207 -22 145  
SINCE MAR 1 665 753 -88 557  
SINCE JUL 1 3711 3986 -275 3444  
 
COOLING  
YESTERDAY 4 0 4 0  
MONTH TO DATE 38 0 38 18  
SINCE MAR 1 38 1 37 18  
SINCE JAN 1 38 1 37 18    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 2.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 5:00 AM  
LOWEST 40 5:00 PM  
AVERAGE 65  
   
......................................................  
 
THE TRI-CITIES AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 85 1952  
1957  
1963  
MINIMUM TEMPERATURE (F) 45 26 1983  
 
SUNRISE AND SUNSET  
APRIL 21 2025.........SUNRISE 6:48 AM EDT SUNSET 8:09 PM EDT  
APRIL 22 2025.........SUNRISE 6:46 AM EDT SUNSET 8:10 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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