924  
CDUS43 KLSX 210729  
CLICOU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
229 AM CDT THU AUG 21 2025  
   
...............................  
 
   
..THE COLUMBIA ASOS CLIMATE SUMMARY FOR AUGUST 20 2025  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1890 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 89 330 PM 102 1962 88 1 80  
2003  
MINIMUM 69 557 AM 46 1950 66 3 60  
AVERAGE 79 77 2 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 3.38 2010 0.15 -0.15 T  
MONTH TO DATE 0.07 2.63 -2.56 2.85  
SINCE JUN 1 13.29 10.99 2.30 18.59  
SINCE JAN 1 26.55 27.85 -1.30 34.53  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2015 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 6 -6 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 14 12 2 5  
MONTH TO DATE 269 262 7 209  
SINCE JUN 1 1003 975 28 941  
SINCE JAN 1 1094 1121 -27 1129    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 6.4  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 500 AM  
LOWEST 47 300 PM  
AVERAGE 72  
   
......................................................  
 
THE COLUMBIA ASOS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 105 2003  
MINIMUM TEMPERATURE (F) 66 48 1950  
1956  
 
SUNRISE AND SUNSET  
AUGUST 21 2025........SUNRISE 628 AM CDT SUNSET 755 PM CDT  
AUGUST 22 2025........SUNRISE 629 AM CDT SUNSET 753 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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