584  
CDUS43 KLSX 012228  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
528 PM CDT MON SEP 01 2025  
   
...............................
 
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 1 2025
 
 
VALID AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 81 1212 PM 104 1984 86 -5 90  
2011  
MINIMUM 62 527 AM 49 1949 66 -4 66  
1967  
AVERAGE 72 76 -4 78  
 
PRECIPITATION (IN)  
TODAY 0.00 4.70 1931 0.10 -0.10 0.00  
MONTH TO DATE 0.00 0.10 -0.10 0.00  
SINCE SEP 1 0.00 0.10 -0.10 0.00  
SINCE JAN 1 32.09 29.77 2.32 31.68  
 
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 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  
TODAY 7 11 -4 13  
MONTH TO DATE 7 11 -4 13  
SINCE SEP 1 7 11 -4 13  
SINCE JAN 1 1528 1461 67 1721    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 5.9  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 70 500 AM  
LOWEST 35 1200 PM  
AVERAGE 53  
   
......................................................
 
 
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 101 1953  
2011  
MINIMUM TEMPERATURE (F) 66 50 1949  
1965  
1967  
 
SUNRISE AND SUNSET  
SEPTEMBER 1 2025.....SUNRISE 631 AM CDT SUNSET 731 PM CDT  
SEPTEMBER 2 2025.....SUNRISE 632 AM CDT SUNSET 730 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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