298  
CDUS43 KLSX 092128  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
428 PM CDT SAT AUG 09 2025  
   
...............................  
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR AUGUST 9 2025  
 
VALID TODAY AS OF 0400 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 95 119 PM 110 1934 89 6 79  
MINIMUM 77 552 AM 54 1884 71 6 64  
AVERAGE 86 80 6 72  
 
PRECIPITATION (IN)  
TODAY 0.00 2.03 2020 0.12 -0.12 0.00  
MONTH TO DATE T 1.07 -1.07 0.27  
SINCE JUN 1 8.96 9.49 -0.53 9.78  
SINCE JAN 1 30.61 27.36 3.25 30.57  
 
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 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  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 4 -4 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 21 15 6 7  
MONTH TO DATE 116 135 -19 141  
SINCE JUN 1 1069 962 107 1072  
SINCE JAN 1 1240 1157 83 1385    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION S (160)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 10.3  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 74 500 AM  
LOWEST 47 200 PM  
AVERAGE 61  
   
......................................................  
 
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 105 1934  
MINIMUM TEMPERATURE (F) 70 54 1972  
 
SUNRISE AND SUNSET  
AUGUST 9 2025........SUNRISE 610 AM CDT SUNSET 803 PM CDT  
AUGUST 10 2025........SUNRISE 611 AM CDT SUNSET 802 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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