017  
CDUS43 KLSX 202231  
CLICOU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
430 PM CST THU DEC 20 2018  
 
   
...............................
 
 
   
..THE COLUMBIA ASOS CLIMATE SUMMARY FOR DECEMBER 20 2018
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1890 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 48 117 AM 69 1949 40 8 51  
MINIMUM 40 359 PM -23 1901 22 18 32  
AVERAGE 44 31 13 42  
 
PRECIPITATION (IN)  
TODAY 0.01 1.01 1991 0.07 -0.06 0.00  
MONTH TO DATE 1.31 1.67 -0.36 0.12  
SINCE DEC 1 1.31 1.67 -0.36 0.12  
SINCE JAN 1 31.79 41.85 -10.06 37.52  
 
SNOWFALL (IN)  
TODAY 0.0 2.0 1960 0.1 -0.1 0.0  
MONTH TO DATE 0.4 2.5 -2.1 T  
SINCE DEC 1 0.4 2.5 -2.1 T  
SINCE JUL 1 5.0 3.4 1.6 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 21 34 -13 23  
MONTH TO DATE 543 627 -84 496  
SINCE DEC 1 543 627 -84 496  
SINCE JUL 1 1692 1612 80 1276  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1950 1249 701 1401    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 11.8  
 
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 700 AM  
LOWEST 73 300 PM  
AVERAGE 85  
   
......................................................
 
 
 
THE COLUMBIA ASOS CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 40 66 1889  
MINIMUM TEMPERATURE (F) 22 -15 1989  
 
 
SUNRISE AND SUNSET  
DECEMBER 20 2018......SUNRISE 723 AM CST SUNSET 450 PM CST  
DECEMBER 21 2018......SUNRISE 724 AM CST SUNSET 450 PM CST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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