529  
CDUS44 KMRX 130851  
CLITRI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MORRISTOWN, TN  
451 AM EDT TUE APR 13 2021  
   
...............................
 
 
   
..THE TRI-CITIES AIRPORT CLIMATE SUMMARY FOR APRIL 12 2021
 
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1937 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 76 3:28 PM 84 1945 67 9 62  
MINIMUM 40 6:09 AM 25 1989 41 -1 43  
AVERAGE 58 54 4 53  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.83 2020 0.11 -0.11 1.83  
MONTH TO DATE 0.26 1.31 -1.05 1.89  
SINCE MAR 1 7.20 4.75 2.45 8.80  
SINCE JAN 1 15.66 11.57 4.09 21.39  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.1 -0.1 0.0  
MONTH TO DATE T 0.6 -0.6 0.0  
SINCE MAR 1 T 2.0 -2.0 0.0  
SINCE JUL 1 10.0 12.8 -2.8 4.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 11 -4 12  
MONTH TO DATE 131 150 -19 115  
SINCE MAR 1 558 718 -160 476  
SINCE JUL 1 3572 4100 -528 3275  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 2 0 2 1  
SINCE MAR 1 3 1 2 7  
SINCE JAN 1 3 1 2 9    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 8.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 7:00 AM  
LOWEST 18 3:00 PM  
AVERAGE 52  
   
......................................................
 
 
THE TRI-CITIES AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 86 1981  
MINIMUM TEMPERATURE (F) 42 23 1940  
 
SUNRISE AND SUNSET  
APRIL 13 2021.........SUNRISE 6:58 AM EDT SUNSET 8:02 PM EDT  
APRIL 14 2021.........SUNRISE 6:57 AM EDT SUNSET 8:03 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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