461  
CDUS44 KMRX 210814  
CLICHA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MORRISTOWN TN  
413 AM EDT THU MAY 21 2020  
 
   
...............................
 
 
   
..THE CHATTANOOGA ASOS CLIMATE SUMMARY FOR MAY 20 2020
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1879 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 68 242 PM 97 1962 81 -13 88  
MINIMUM 61 1159 PM 40 1894 59 2 66  
AVERAGE 65 70 -5 77  
 
PRECIPITATION (IN)  
YESTERDAY 0.24 1.19 1923 0.12 0.12 0.00  
MONTH TO DATE 4.13 2.75 1.38 5.84  
SINCE MAR 1 19.64 11.72 7.92 16.16  
SINCE JAN 1 37.06 21.47 15.59 34.47  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 0.0 1.3 -1.3 0.0  
SINCE JUL 1 3.0 3.9 -0.9 0.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 68 33 35 12  
SINCE MAR 1 462 611 -149 533  
SINCE JUL 1 2524 3233 -709 2901  
 
COOLING  
YESTERDAY 0 5 -5 12  
MONTH TO DATE 63 74 -11 137  
SINCE MAR 1 117 120 -3 208  
SINCE JAN 1 117 120 -3 214    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 4.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
FOG  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 500 PM  
LOWEST 73 100 AM  
AVERAGE 87  
   
......................................................
 
 
 
THE CHATTANOOGA ASOS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 95 1962  
1941  
MINIMUM TEMPERATURE (F) 59 40 1954  
 
 
SUNRISE AND SUNSET  
MAY 21 2020...........SUNRISE 633 AM EDT SUNSET 843 PM EDT  
MAY 22 2020...........SUNRISE 632 AM EDT SUNSET 843 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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