609  
CDUS43 KLSX 212226  
CLICOU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
526 PM CDT SUN SEP 21 2025  
   
...............................  
 
   
..THE COLUMBIA ASOS CLIMATE SUMMARY FOR SEPTEMBER 21 2025  
 
VALID AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 85 159 PM 100 1893 78 7 83  
MINIMUM 64 601 AM 35 1897 56 8 70  
1983  
AVERAGE 75 67 8 77  
 
PRECIPITATION (IN)  
TODAY 0.38 3.57 1945 0.13 0.25 0.01  
MONTH TO DATE 1.40 2.70 -1.30 0.01  
SINCE SEP 1 1.40 2.70 -1.30 0.01  
SINCE JAN 1 27.99 32.06 -4.07 35.15  
 
SNOWFALL (IN)  
TODAY 0.0 0.0 2015 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 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  
TODAY 0 2 -2 0  
MONTH TO DATE 11 17 -6 10  
SINCE SEP 1 11 17 -6 10  
SINCE JUL 1 12 18 -6 10  
 
COOLING  
TODAY 10 4 6 12  
MONTH TO DATE 174 142 32 154  
SINCE SEP 1 174 142 32 154  
SINCE JAN 1 1326 1380 -54 1415    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 5.8  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 600 AM  
LOWEST 48 100 PM  
AVERAGE 74  
   
......................................................  
 
THE COLUMBIA ASOS CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 97 1937  
MINIMUM TEMPERATURE (F) 56 33 1995  
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2025.....SUNRISE 656 AM CDT SUNSET 707 PM CDT  
SEPTEMBER 22 2025.....SUNRISE 657 AM CDT SUNSET 705 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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