782  
CDUS43 KLSX 030729  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
229 AM CDT WED SEP 03 2025  
   
...............................  
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 2 2025  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1874 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 83 334 PM 101 1953 86 -3 82  
2011  
MINIMUM 64 652 AM 50 1949 66 -2 61  
1965  
1967  
AVERAGE 74 76 -2 72  
 
PRECIPITATION (IN)  
YESTERDAY 0.05 1.56 1993 0.11 -0.06 0.00  
MONTH TO DATE 0.05 0.21 -0.16 0.00  
SINCE SEP 1 0.05 0.21 -0.16 0.00  
SINCE JAN 1 32.14 29.88 2.26 31.68  
 
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 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  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 1 -1 0  
 
COOLING  
YESTERDAY 9 11 -2 7  
MONTH TO DATE 16 22 -6 20  
SINCE SEP 1 16 22 -6 20  
SINCE JAN 1 1537 1472 65 1728    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 3.5  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 600 AM  
LOWEST 36 500 PM  
AVERAGE 63  
   
......................................................  
 
THE ST. LOUIS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 101 2011  
MINIMUM TEMPERATURE (F) 65 45 1974  
 
SUNRISE AND SUNSET  
SEPTEMBER 3 2025.....SUNRISE 633 AM CDT SUNSET 728 PM CDT  
SEPTEMBER 4 2025.....SUNRISE 634 AM CDT SUNSET 727 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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